# Whole Numbers www mathsrevision com Level 2 Place

Whole Numbers www. mathsrevision. com Level 2 Place Value Multiplying / Dividing by 20, 50 , 3000 Rounding to 10, 100 and 1000 Rounding and Estimating Using a Calculator BODMAS 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com Level 2 34 o 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers Place Value www. mathsrevision. com Level 2 Learning Intention Success Criteria 1. We are learning the value of a digit given its place in a numbers. 1. Understand the value of a digit given it place in a number. 2. Be able solve simply problems involving place value. 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers Place Value www. mathsrevision. com Level 2 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers Place Value www. mathsrevision. com Level 2 Write down the following numbers fully in words (a) 3000007 Three million and seven (b) 400678 Four hundred thousand six hundred and seventy-eight (c) 124 087 One hundred and twenty-four thousand eighty-seven 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers Place Value www. mathsrevision. com Level 2 Write down the following numbers using digits (a) Four million and fifty 4000050 (b) Eight hundred thousand four 800004 (c) 03 -Dec-20 Two hundred and forty thousand nine 240 009 Created by Mr. Lafferty Maths Dept.

Whole Numbers Place Value www. mathsrevision. com Level 2 Write down the following numbers in order of size smallest first. 605 , 5106 , 4198 , 4921 , 516 , 506 , 516 , 605 , 4198 , 4921 , 5106 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Weight & Scales Reading Scales Level 2 Calculate the weight each arrow is pointing at? www. mathsrevision. com 12000 g 0 10000 g Count the number of small divisions 5 20000 g 30000 g 40000 g 50000 g Each division is worth 28000 g 54000 g 03 -Dec-20 Compiled by Mr. Lafferty Maths Dept. 10000 ÷ 5 = 2000 g

Weight & Scales Reading Scales Level 2 Calculate the weight each arrow is pointing at? www. mathsrevision. com 8000 g 0 20000 g Count the number of small divisions 5 40000 g Each division is worth 60000 g 100000 g 80000 g 20000 ÷ 5 = 4000 g 72000 g 104000 g 03 -Dec-20 Compiled by Mr. Lafferty Maths Dept.

Whole Numbers Place Value www. mathsrevision. com Level 2 Place Value Sheet 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers www. mathsrevision. com Level 2 Now try TJ 2 b Ex 1 Ch 1 (page 3) 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com Level 2 28 o 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers Multiply or Divide by 20, 300, 4000 www. mathsrevision. com Level 2 Learning Intention 1 03 -Dec-20 Success Criteria We are learning how to multiply / divide by 20, 300, 4000 etc using our knowledge so far. 1. Understand the two step process to multiply or divide by 20, 300 etc… 2. Show all working. Created by Mr. Lafferty Maths Dept.

Whole Numbers Multiply by 10, 1000 Level 2 www. mathsrevision. com To multiply by 10, 1000 To multiply by 10 simply add a zero to the number To multiply by 100 simply add 2 zero’s to the number To multiply by 1000 simply add 3 zero’s to the number Example : Multiply 36 by 10, 1000. Guess 36 rule x 10 for 1000 03 -Dec-20 = 360 36 x 100 = 3600 Created by Mr. Lafferty Maths Dept. 36 x 1000 = 36000

Whole Numbers Multiply by 10, 1000 www. mathsrevision. com Level 2 Ex : A box of crisps contain 48 packets. How many in 100 boxes ? 4 8 0 0 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers Try and write down rule for 100, 1000 www. mathsrevision. com Level 2 Divide by 10, 100, 1000 To divide by 10 remove a zero from the number To divide by 100 remove 2 zero’s from the number To divide by 1000 remove 3 zero’s from the number Example : Divide 54000 by 10, 1000. 54000 ÷ 10 = 54000 ÷ 1000 = 54 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers Divide by 10, 1000 www. mathsrevision. com Level 2 Ex : A box contains 1000 cups. How many boxes are needed to hold 7000 ? 7 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers Multiply or Divide by 20, 300, 4000 www. mathsrevision. com Level 2 1 0 4 0 By combining our knowledge so far of “multiplying / dividing by 10, 1000” and “multiplying / dividing by a single digit” we can do harder calculations. We use a TWO step process. Example : Calculate 20 x 52 20 can be written as 2 x 10 so we have : 2 x 10 x 52 = Step 1 : 10 x 52 = 520 03 -Dec-20 Step 2 : 2 x 520 = Created by Mr. Lafferty Maths Dept.

Whole Numbers Multiply or Divide by 20, 300, 4000 17 Level 2 www. mathsrevision. com Example : 8 3 02 0 Calculate 44 x 30 30 can be written as 10 x 3 so we have : 44 x 10 x 3 = Step 1 : 44 x 10 = 440 Example : Step 2 : 440 x 3 = Calculate 300 x 26 300 can be written as 3 x 100 so we have : 3 x 100 x 26 = Step 1 : 100 x 26 = 2600 Step 2 : 2600 x 3 = 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers Multiply or Divide by 20, 300, 4000 www. mathsrevision. com Level 2 Example : Calculate 16000 ÷ 200 Since 200 divide by 100 then divide by 2: 16000 ÷ 100 ÷ 2 Step 1 : 16000 ÷ 100 = 160 Step 2 : 03 -Dec-20 8 0 Created by Mr. Lafferty Maths Dept.

Whole Numbers Multiply or Divide by 20, 300, 4000 www. mathsrevision. com Level 2 Example : Calculate 120000 ÷ 6000 Since 6000 divide by 1000 then divide by 6: 120000 ÷ 1000 ÷ 6 Step 1 : 120000 ÷ 1000 = 120 Step 2 : 03 -Dec-20 2 0 Created by Mr. Lafferty Maths Dept.

Whole Numbers Multiply or Divide by 20, 300, 4000 www. mathsrevision. com Level 2 Now try TJ 2 b Ex 2 Ch 1 (page 5) Are you on Target ? I can ? 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com Level 2 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers www. mathsrevision. com Level 2 Learning Intention Success Criteria 1. We are learning to round numbers to the nearest 10, 100 and 1000. 1. Understand the rules for rounding to the nearest 10, 100 and 1000. 2. Apply rules to problems. 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers www. mathsrevision. com Level 2 To round to the nearest 10 : look at the units digit: - If it is a 0, 1, 2, 3, 4 leave the 10’s digit as it is. - If it is a 5, 6, 7, 8, 9 round the 10’s digit up by 1. To round to the nearest 100 : look at the tens digit: - If it is a 0, 1, 2, 3, 4 leave the 100’s digit as it is. - If it is a 5, 6, 7, 8, 9 round the 100’s digit up by 1. 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers Level 2 www. mathsrevision. com Example : Round 8 565 to the nearest 10 and 100. The nearest 10 : 8 565 - look at the units digit : 8 570 The nearest 100 : 8 565 - look at the tens digit : 8 600 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Whole Numbers www. mathsrevision. com Level 2 Now try TJ 2 b Ex 3 Ch 1 (page 7) 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com MNU 3 -01 a 42 o 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Estimating Using Sig. Fig. to Estimate Answers www. mathsrevision. com MNU 3 -01 a Learning Intention Success Criteria 1. We are learning how to estimate an answer using significant figures. 03 -Dec-20 2. Estimate the answer to a calculation using significant figures. Created by Mr. Lafferty Maths Dept.

Estimating Using Sig. Fig. to Estimate Answers www. mathsrevision. com MNU 3 -01 a It is very important when solving problems that we have a rough idea of the answer we are expecting. Example : Mentally estimate the answer to 42 x 49 by rounding each number to 1 sig. first. 40 x 50 = 400 x 5 = 2000 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Estimating Using Sig. Fig. to Estimate Answers MNU 3 -01 a www. mathsrevision. com Example : Mentally estimate the answer to 104 x 19 by rounding each number to 1 sig. first. 100 x 20 = 1000 x 2 = 2000 Example : Mentally estimate the answer to 878 ÷ 27 by rounding each number to 1 sig. first. 03 -Dec-20 Created by Mr. Lafferty Maths Dept. 900 ÷ 30 = 90 ÷ 3 = 30

Whole Numbers www. mathsrevision. com Level 2 Now try TJ 2 b Ex 4 Ch 1 (page 8) 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com Level 2 Q 1. 382000 ÷ 1000 Q 2. 13 + 22 – 35 Q 3. Find the missing angle 120 o 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Using a Calculator www. mathsrevision. com Level 2 Learning Intention 1 Success Criteria We are learning to use a scientific calculator. 1. Be able to use a scientific calculator with confidence. 2. Use calculator to evaluate complicated calculations. 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Using a Calculator Level 2 www. mathsrevision. com We should by now ALL have the FX 83 calculator. We will use it to do more complicated calculations. 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Using a Calculator www. mathsrevision. com Level 2 Josh won £ 1. 2 million on the lottery He spent £ 142000 on a fancy car. How much does he have left ? 1200000 – 142000 = £ 1058000 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Using a Calculator www. mathsrevision. com Level 2 Celtic are expect 10000 fans to go to the cup final in Lisbon. A plane can hold 380 people. How many planes are needed ? 10000 – 380 = 26. 3 03 -Dec-20 27 planes Created by Mr. Lafferty Maths Dept.

Using a Calculator www. mathsrevision. com Level 2 Maria pays £ 32 every time she goes to the fitness suite. She goes twice a month. Her budget for the year is £ 700. Does she go over her budget ? 32 x 12 = £ 768 03 -Dec-20 She goes over budget by £ 68 Created by Mr. Lafferty Maths Dept.

Whole Numbers www. mathsrevision. com Level 2 Now try TJ 2 b Ex 5 Ch 1 (page 9) 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com Level 2 Q 1. 34 x 1000 Q 2. 3+2 x 4 Q 3. Find the missing angle 58 o 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

BODMAS www. mathsrevision. com Level 2 Learning Intention 1 Success Criteria We are learning the order of calculations using BODMAS. 1. Understand the order of calculations. 2. Use BODMAS to evaluate complicated calculations. 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

BODMAS Level 2 www. mathsrevision. com Calculations MUST BE done in a certain order. We can use BODMAS to help us remember the order. B O D M A S 03 -Dec-20 - Brackets Other Division Multiplication Addition Subtraction Created by Mr. Lafferty Maths Dept. x and ÷ same priority + and - same priority

BODMAS www. mathsrevision. com Level 2 200 – 25 x 2 = 200 – 50 = 150 03 -Dec-20 9 – half of 10 + 2 =9– 5+2 =4+2 =6 Created by Mr. Lafferty Maths Dept.

BODMAS www. mathsrevision. com Level 2 80 ÷ (8 – 3) 4 x ( 48 + 12) + 10 = 80 ÷ 5 = 4 x 60 + 10 = 16 = 240 + 10 = 250 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

Have you updated your Learning Log ? BODMAS www. mathsrevision. com Level 2 Now try TJ 2 b Ex 6 Ch 1 (page 11) Are you on Target ? I can ? Mind Map 03 -Dec-20 Created by Mr. Lafferty Maths Dept.

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