310320 WALT multiply 3 digit by 2 digit
31/03/20 WALT: multiply 3 digit by 2 digit numbers. WILF: • I can use grid method • I can use the knowledge of times tables • I can use the long strategy to solve problems • I can use multiplication facts to solve multi step problems. Key Vocabulary: partition, Multiply, add together, whole numbers, ones, tens, hundreds exchange , product, place value holder, product, calculate
Starter: Arithmetic 1. 2. 3. 4. 5. Write in words= 45362 Add 199 to 34675 = 45. 5 x 1000 = Write the factors of: 44 Write the difference between these numbers -14 and 11 6. Round this number to the nearest 10000=456392 7. Calculate 4827 + 7079
1. Write in words: 45362 Forty five thousand three hundred and sixty two. 2. Add 199 to 34675 =34874 3. 45. 5 x 1000 = 45500 4. Write the factors of: 44= 1, 2, 4, 11, 22, 44 5. Write the difference between these numbers 14 and 11 25 6. Round this number to the nearest 10000=456392 = 460000 7. Calculate 4827 + 7079 = 11906
Recap: multiply whole numbers TTh Th H T 1 4 3 X 5 7 1 1 O 2 4 2 8 Click on the link below to see how to work out: 3 digit x 2 digit https: //www. youtube. com/watch? v=P 59 v. Hj. Jul. Io
T Model: Use the formal multiplication method to complete the calculation below. 1) 263 x 34= 8942 2) Annie earns £ 1, 325 per week. How much would he earn in 14 weeks? Annie earns £_____ in 14 weeks. x 1325 14 ( 1325 x 4) (1325 x 10) Add them together
Karl is painting his door red. One tin covers an area of 10, 000 cm². The door is 198 cm x 76 cm. He thinks he needs to buy 15 tins. Is he correct? Explain your answer. Karl is not correct because 198 x 76 = 15, 048 so Karl needs to buy 2 tins.
Plenary Can you solve them mentally? 130 ÷ 5, 373 ÷ 20, 547 ÷ 8, 448 ÷ 8, 330 ÷ 6, 137 ÷ 9. What did you notice? Share with your answers.
- Slides: 7