To solve complex reallife problems involving numbers up

To solve complex real-life problems involving numbers up to three decimal places using efficient methods of calculation. Year 5 - Number (GDS) Lesson 2

To solve complex real-life problems involving numbers up to three decimal places using efficient methods of calculation. I can use keywords in the question to identify which operations to use. I can use place value to correctly organise my written method. I can use written methods to find the answer. Recap from the last lesson… Look at the skills and then quickly check your understanding. Previously, we covered using the using place value to help us read, order, compare and round numbers with decimals. Vocabulary Decimals Decimal places Digits Place value Order Compare Rounding Tenths Hundredths Thousandths Let’s quickly recap the rules of how we can use a place value chart to help us read, order, compare and round decimals. Reading numbers: Place each digit correctly in the place value chart. Each digit’s value will be determined by the place value column it is in. For example, if the digit 4 is in the tenths column then its value would be 0. 4. Comparing and ordering decimals: Place the digits of all your numbers on place value chart. Make sure each digit is in the correct place value column, then compare each digit to see which is larger. Rounding numbers with decimals: Rounding decimal numbers is the same as rounding whole numbers. Highlight the digit that needs to be rounded and then look to see if its neighbour is 5 or more or 4 or less. If it is 5 or more then round up; 4 or less then round down. If you round to the nearest whole number, you round the ones digit. Rounding 1 decimal place means you round the tenths and rounding 2 decimal places means you round the hundredths.

Learning check: You do…. QUESTIONS: 1. Order the following digits in ascending order: 22. 222. 2 22. 2 2. Round the following number to the nearest whole number, one decimal place and two decimal places: 784. 843 Answers: 1. 2. 222, 222. 2 2. Nearest whole number: 785 1 d. p: 784. 8 2. dp: 784. 84 If you are struggling or didn’t get the correct answers, rewatch the video above which breaks down how to use the place value chart to order, compare and round decimals. If you feel confident, carry on with the slides.

To solve complex real-life problems involving numbers up to three decimal places using efficient methods of calculation. I can use keywords in the question to identify which operations to use. I can use place value to correctly organise my written method. I can use written methods to find the answer. Vocabulary Decimals Decimal places Digits Place value Order Compare Rounding Tenths Hundredths Thousandths Adding decimal numbers: 789. 31 + 493. 734 = Subtracting decimal numbers: 674. 39 - 313. 813 Multiplying decimal numbers: 59. 43 X 21 = Teacher Example… Fluency - adding, subtracting and multiplying decimals. This video will show you how we can use column method to add and subtract decimal numbers.

To solve complex real-life problems involving numbers up to three decimal places using efficient methods of calculation. I can use keywords in the question to identify which operations to use. I can use place value to correctly organise my written method. I can use written methods to find the answer. Learning check: You do…. Vocabulary Decimals Decimal places Digits Place value Order Compare Rounding Tenths Hundredths Thousandths Solve the following equations: 1. 492. 402 - 349. 31 = 2. 783. 412 + 490. 77 = 3. 838. 83 - 349. 34 = 4. 480. 002 + 49. 564 = 5. 7. 49 X 3 = 6. 252. 4 X 15 = If you are struggling with these equations, go back and watch the video again to see how it is done. Answers: 1. 2. 3. 4. 5. 6. 143. 092 1274. 19 489. 49 529. 566 22. 47 3786

To solve complex real-life problems involving numbers up to three decimal places using efficient methods of calculation. I can use keywords in the question to identify which operations to use. I can use place value to correctly organise my written method. I can use written methods to find the answer. Vocabulary Decimals Decimal places Digits Place value Order Compare Rounding Tenths Hundredths Thousandths Application question: James goes to the store to buy a few things. He buys 3 blenders for £ 65. 75 each and a toaster for £ 23. 54. At the till James gives 5 fifty pound notes. How much change does he get? Reasoning question: Emily argues that to make 7. 55 you will need to add 7. 5 and 0. 5. Is she correct? Explain your answer. Teacher Example… Application and reasoning questions. . . Watch the video to see how we can solve this problem.

To solve complex real-life problems involving numbers up to three decimal places using efficient methods of calculation. I can use keywords in the question to identify which operations to use. I can use place value to correctly organise my written method. I can use written methods to find the answer. Vocabulary Decimals Decimal places Digits Place value Order Compare Rounding Tenths Hundredths Thousandths Learning check: You do…. Q 1 Saima bought a Playstation for £ 210. 99, two controllers for £ 69. 99 each and 4 games for £ 45. 50 each. At the till she gets a £ 75. 00 discount. How much does she pay altogether? Q 2 Jamie argues that in order to make 3. 033 you will need to do the following equation: 3 + 0. 3. Is he correct? Explain your answer.

To solve complex real-life problems involving numbers up to three decimal places using efficient methods of calculation. I can use keywords in the question to identify which operations to use. I can use place value to correctly organise my written method. I can use written methods to find the answer. Vocabulary Decimals Decimal places Digits Place value Order Compare Rounding Tenths Hundredths Thousandths Learning check: Answers: Q 1 Saima bought a Playstation for £ 210. 99, two controllers for £ 69. 99 each and 4 games for £ 45. 50 each. At the till she gets a £ 75. 00 discount. How much does she pay altogether? £ 69. 99 X 2 = £ 139. 98 £ 45. 50 X 4 = £ 182 £ 210. 99 + £ 139. 98 + £ 182 = £ 532. 97 - £ 75. 00 = £ 457. 97 Q 2 Jamie argues that in order to make 3. 033 you will need to do the following equation: 3 + 0. 3. Is he correct? Explain your answer. Jamie is wrong because you cannot use 0. 3 because there are no tenths in 3. 033. Instead it you be 3 hundreths (0. 03) and 3 thousandths (0. 003).

Well done! Now complete the worksheet below on the google doc. You can either write the answers on the google doc, or write it out on paper and send a picture of your work to your teacher. https: //docs. google. com/document/d/10 Svtyj. Rj. D 2 Utztb. Qwgj 0 BBLLnbc. T 35 o 5 MJ_Bt. Psc-9 Q/edit Remember to log onto maths whizz as well this week!