Time Distance Speed www mathsrevision com Num Revision

Time Distance Speed www. mathsrevision. com Num Revision of Level 2 Time Calculating Distance Calculating Speed Calculating Time Mixed Problems 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com Num 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Time Revision of Level 2 www. mathsrevision. com Num Learning Intention Success Criteria 1. To revise Level 2 work on Time. 1. Convert 12 hr to 24 hr clock. 2. Convert 24 hr to 12 hr clock. 3. Count Method to find time intervals. 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

12/24 Hour Clock midnight 1 am 2 am 3 am 4 am 5 am 6 am 7 am 8 am 9 am 10 am 11 am 0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 midday 1 pm 2 pm 3 pm 4 pm 5 pm 6 pm 7 pm 8 pm 9 pm 10 pm 11 pm 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 To go from 12 hour clock to 24 hour clock just add 12 to the pm hours: Examples 8 pm becomes 2000 6: 30 pm becomes 4: 20 pm becomes 13 -Sep-21 1830 1620 9 pm becomes 2100 11: 30 pm becomes 2330 3: 10 pm becomes Created by Mr. Lafferty Maths Dept. 1510

12/24 Hour Clock midnight 1 am 2 am 3 am 4 am 5 am 6 am 7 am 8 am 9 am 10 am 11 am 0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 midday 1 pm 2 pm 3 pm 4 pm 5 pm 6 pm 7 pm 8 pm 9 pm 10 pm 11 pm 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 To go from 24 hour clock to 12 hour clock just subtract 12 from the hours if it is greater than 12: Examples 2000 becomes 8 pm 2100 becomes 9 pm 1730 becomes 5: 30 pm 2208 becomes 10: 08 pm 2006 becomes 8: 06 pm 1350 becomes 1: 50 pm 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Counting Method www. mathsrevision. com Num When working out time difference we will use the Counting Method. This method will always work. Example : 08 46 09 00 11 00 13 -Sep-21 mins = 1 hr Find the time 60 difference between 08 46 hrs and 11 52 hrs 3 hrs 6 mins Hrs Mins nearest hours What’s left? 09 00 11 52 Created by Mr. Lafferty Maths Dept. 14 + 2 52 2 66

Counting Method Num www. mathsrevision. com Example : 02 37 03 00 23 00 Find the time difference between 02 37 hrs and 23 49 hrs nearest hours What’s left? Hrs 03 00 23 49 Mins 23 + 20 20 49 72 21 hrs 12 mins 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Time Revision of Level 2 www. mathsrevision. com Num Now try Lifeskills Ex 1 & 2 Ch 5 (page 40) 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com Num 4 x 6 x 4 x 120 70 13 -Sep-21 Created by Mr. Lafferty Maths Dept. o o

Distance Working Out Distance www. mathsrevision. com Num Learning Intention Success Criteria 1. We are learning how to work out simple distance. 1. Understand the distance formula. 2. Apply the formula to calculate simple distance. 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Distance Working out Distances www. mathsrevision. com Num Imagine you were travelling in a train at a steady speed of 80 km/hr. In 1 hour you travel : 80 x 1 = 80 km In 2 hours you travel : In 3 hours you travel : 80 x 2 = 160 km 80 x 3 = 240 km Can you guess what the formula is : in symbols 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Distance www. mathsrevision. com Num Example : A racing car travelled at 50 km/hr. What is the distance covered in 6 hours ? Working 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Distance www. mathsrevision. com Num Now try Lifeskills Ex 3 Ch 5 (page 42) 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com Num 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Speed Working Out Speed www. mathsrevision. com Num Learning Intention Success Criteria 1. We are learning how to calculate simple speed. 1. Understand the speed formula. 2. Apply the formula to calculate simple speed. 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Speed Working Out Speed www. mathsrevision. com Num Imagine you sailed 45 kilometres between two islands and it took 3 hours. In 3 hours you travel : = 45 km 45 ÷ 3 = 15 km In 1 hour you travel : This means your speed is : 15 km/hr Can you guess what the formula is : in symbols 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Speed Num www. mathsrevision. com Example : Sean flies to Majorca on holiday , a distance of 2500 km. It took 4 hrs to get there. What was the plane’s average speed? Working 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Speed www. mathsrevision. com Num Now try Lifeskills Ex 4 Ch 5 (page 43) 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com Num 4 cm 6 cm 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Time Working Out Time www. mathsrevision. com Num Learning Intention Success Criteria 1. We are learning how to calculate simple time. 13 -Sep-21 1. Remember the time formula. 2. Apply the formula to calculate simple time. Created by Mr. Lafferty Maths Dept.

Basic Fractional Hours www. mathsrevision. com Num You should already know : 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Hrs Mins to Decimal Time Converting Hrs Mins to Decimal Time www. mathsrevision. com Num To convert minutes to decimal hours we simply divide minutes by 60. Example : 48 minutes to decimal is Example : 2 hr 15 minutes to decimal is 13 -Sep-21 Created by Mr. Lafferty Maths Dept. = 0. 8 hr = 2. 25 hr

Hrs Mins to Decimal Time www. mathsrevision. com Num Calculate the decimal hour value for minutes below. Convert 9 hrs 45 mins into hours 9. 75 hrs Convert 7 hrs 15 mins into hours 7. 25 hrs Convert 6 hrs 30 mins into hours 6. 5 hrs 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Hrs Mins to Decimal Time Converting Hrs Mins to Decimal Time Num www. mathsrevision. com Try and remember the more common decimal hours 6 mins 12 mins 18 mins 24 mins 30 mins 36 mins 42 mins 48 mins 54 mins 13 -Sep-21 → → → → → 0. 1 hrs 0. 2 hrs 0. 3 hrs 0. 4 hrs 0. 5 hrs 0. 6 hrs 0. 7 hrs 0. 8 hrs 0. 9 hrs Created by Mr. Lafferty Maths Dept.

Hrs Mins to Decimal Time Converting Hrs Mins to Decimal Time Num www. mathsrevision. com Calculate the decimal hour value for minutes below. 0. 7 hrs 0. 3 hrs 0. 6 hrs 0. 5 hrs 0. 2 hrs 0. 1 hrs 0. 4 hrs 0. 9 hrs 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Hrs Mins to Decimal Time Converting Decimal Time to Hrs Mins www. mathsrevision. com Num You should already know : To change minutes to a decimal time ‘divide by 60’ To convert back to and minutes we do the opposite : To change decimal time to minutes ‘multiply by 60’ 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Hrs Mins to Decimal Time Converting Decimal Time to Hrs Mins www. mathsrevision. com MNU 4 -10 b To change decimal time to minutes ‘multiply by 60’ Example : 0. 7 hrs to minutes is Example : 3. 4 hrs to hours and minutes is = 3 hrs 24 mins 13 -Sep-21 Created by Mr. Lafferty Maths Dept. = 42 mins

Decimal Time to Hrs Mins Num www. mathsrevision. com Calculate the hours and minutes for theses decimal hours 3 hrs 30 mins 4 hr 15 mins 6 hrs 45 mins 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Hrs Mins to Decimal Time Converting Decimal Time to Hrs Mins MNU 4 -10 b www. mathsrevision. com Calculate the hours and minutes for theses decimal hours 4 hrs 42 mins 1 hr 48 mins 4 hrs 36 mins 1 hr 24 mins 3 hrs 18 mins 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Time Working Out Time www. mathsrevision. com Num Imagine you flew 800 miles to Paris and the average speed of the plane was 200 miles/hr. To travel 200 miles takes 1 hour : To travel 800 miles takes : 800 ÷ 200 = 4 hours Can you guess what the formula is : in symbols 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Time www. mathsrevision. com Num Ex : Tony ran 400 metres at an average speed of 5 m/s. How long did he take to complete the race. Working 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Time www. mathsrevision. com Num Now try Lifeskills Ex 5 Ch 5 (page 45) 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com Num What are the rules for integers ? 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Time Distance Speed Mixed Problems www. mathsrevision. com Num Learning Intention Success Criteria 1. We are revising Basic DST. 1. Remember triangle method for distance, speed time problems. 2. Apply triangle method to mixed problems (Whole Numbers only). 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Time Distance Speed Mixed Problems www. mathsrevision. com Num D=S T D S T Simple way to remember the 3 formulae ! 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Time Distance Speed Mixed Problems Num www. mathsrevision. com Ex : A bus travels from Glasgow to London a distance of 556. 8 km. It took 9 hours and 36 minutes. What was the average speed of the bus ? Working D S T 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Time Distance Speed Mixed Problems Num www. mathsrevision. com Example : A train travelled at 70 km/hr for 2 hrs 54 mins. How far did it travel in this time. Working D 13 -Sep-21 Created by Mr. Lafferty Maths Dept. S T

Time Distance Speed Mixed Problems Num www. mathsrevision. com Ex : An aeroplane flies between Glasgow and New York. The distance between the two cities is 3200 miles. The average speed of the plane is 500 mph. How long did the journey take? Working D S T 13 -Sep-21 Created by Mr. Lafferty Maths Dept.

Have you updated your Learning Log ? Mixed Questions www. mathsrevision. com Num Now try Lifeskills Ex 6 Ch 5 (page 47) Are you on Target ? I can ? Mind Map 13 -Sep-21 Created by Mr. Lafferty Maths Dept.