Year 7 - Computation with positive integers

3 × 1000 + 9 × 10 + 2 × 1 is the expanded form of:

• 3920

• 392

• 3092

• 3902

• 329

Which of the following is not true?

• 2 + 3 = 3 + 2

• 2 × 3 = 3 × 2

• (2 × 3) × 4 = 2 × (3 × 4)

• 5 ÷ 2 ≠ 2 ÷ 5

• 7 − 2 = 2 − 7

The sum of 198 and 103 is:

• 301

• 304

• 299

• 199

• 95

The difference between 378 and 81 is:

• 459

• 297

• 303

• 317

• 299

The product of 7 and 21 is:

• 147

• 141

• 21

• 140

• 207

The missing digit in this division is:

• 6

• 1

• 9

• 8

• 7

The remainder when 317 is divided by 9 is:

• 7

• 5

• 2

• 1

• 0

458 rounded to the nearest 100 is:

• 400

• 500

• 460

• 450

• 1000

The answer to [2 + 3 × (7 – 4)] ÷ 11 is:

• 1

• 5

• 11

• 121

• 0

Which expression correctly shows 15 more than the difference of 48 and 12?

• 15 - 48 - 12

• 48 - 12 + 15

• 15 × (48 - 12)

• 15 + (48 ÷ 12)

• 48 - 15 + 12