29 01 21 Year 3 Scaling Year 4

29. 01. 21 Year 3: Scaling. Year 4: Multiplying 3 digits by 1 digit.

Does Eva have twice as many snowballs as Amir? Amir has 3 snowballs. Eva has 6 snowballs. Year 3

Amir now has 5 snowballs. If Eva makes twice as many snowballs, how many will she have? Eva has 10 snowballs. Year 3

Eva has 10 snowballs Year 3 Have a think I have made three times as many snowballs as you! How many snowballs has Whitney made?

Year 3 Eva has 10 snowballs. Whitney has three times as many snowballs as Eva. 10 10 Whitney has 30 snowballs. How many snowballs does Whitney have?

Here is a bar model to represent how children in Class 3 travel to school. Use the bar model to complete the sentences. Have a think Twice as many children travel by car as by bus. ______ 5 times as many children walk as travel by bus. _______ Year 3

Here are 2 toys. The giraffe is 3 times as tall as the elephant. How tall is the elephant? 60 Year 3 Have a think 20 20 20 The elephant is 20 cm tall. 20 60 is 3 times greater than 20 60 cm 20 is 3 times smaller than 60 ?

Year 4 243 4 times 243 × 4 = 9 7 2 Hundreds Tens Ones

Year 4 123 × 4 = 492 Hundreds Tens Ones H T O 1 2 3 4 1 2 (3 × 4) 8 0 (20 × 4) 4 0 0 (100 × 4) 4 9 2

Year 4 123 × 4 = 492 Hundreds Tens Ones H T O 1 2 3 4 4 9 1 2 12 ones 8 tens 9 tens 4 hundreds

Year 4 103 × 4 = 412 3 × 4 = 12 0× 4= 0 100 × 4 = 400 Hundreds Tens H T O 1 0 3 4 Ones 4 1 2 1 103 100 0 3

153 × 7 = 1, 071 3 × 7 = 21 Year 4 Th 50 × 7 = 350 1 153 50 T O 1 5 3 7 100 × 7 = 700 100 H 3 0 7 3 2 1 5 tens × 7 = 35 tens + 2 tens = 37 tens 1 hundred × 7 = 7 hundreds + 3 hundreds = 10 hundreds