IMYC 7 Multiplication

IMYC 7 Multiplication

Good morning grade 7!

Work out the missing number in the calculation

• 424.012 x ....... = 4240.12

424.012 x 10 = 4240.12

All of the numbers jumped one place to the left

What's the missing number in this calculation?

.......... x 1000 = 125 900

125.9 x 1000 = 125900

Multiple Choice

Select the missing number in this calculation...

244.2 ÷ .... = 2.442

• 10

• 100

• 100

244.2 ÷ 100 = 2.442

The numbers have moved two places to the right

Multiple Choice

Select the missing number in this calculation:

..... x 100 = 466 970

• 46.66970

• 466.970

• 4669.70

4669.7 x 100 = 466 970

The numbers have moved two spaces to the left

Written multiplication

Calculate 137 x 18

1 3 7

x 1 8

Now its your turn! DO NOT USE A CALCULATOR...

Work out 98 x 3 using written multiplication

Multiple Choice

What is 98 x 3?

• 294

• 291

• 297

Written multiplication

Calculate 98 x 3

9 8

x 3

Work out using written multiplication

132 x 52 (do not use a calculator)

Multiple Choice

What is 132 x 52?

• 6787

• 6464

• 6864

Written multiplication

Calculate 132 x 52

1 3 2

x 5 2

What does 2² mean?

When we square a number, we multiply it by itself

10² = 10 x 10 = 100

Multiple Choice

What is 15²? Use the written multiplication method to find your answer.

NO calculators allowed

• 220

• 225

• 150

• 115