Written Multiplication & Division · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

Multiplying and Dividing Bigger Numbers

Mathematics · Multiplication & Division · ages 7-8
Name ______________________   Date ____________

  1. What is 23 x 4?

    Answer: ______________

  2. Which partition correctly finds 23 x 4?

    • 23 + 23 + 23
    • 20 + 4 + 3 + 4
    • 30 x 4 - 3 x 4
    • 20 x 4 + 3 x 4

  3. To multiply 23 × 4 by partitioning, you split 23 into two parts. What are they?

    • 20 and 3
    • 2 and 3
    • 23 and 4

  4. In the formal written method, you multiply the ones digit first.

    Circle one:   True   False

  5. Use partitioning to work out 34 x 2. What is the answer?

    Answer: ______________

  6. You are multiplying 23 × 4 with the column method. You start with 3 × 4 = 12. What do you do?

    • Write 12 in the ones place
    • Write 1 in the ones place and carry the 2
    • Write 2 in the ones place and carry the 1

  7. Which table fact helps you work out 96 / 8?

    • 9 x 8 = 72
    • 8 x 12 = 96
    • 8 + 8 = 16
    • 96 - 8 = 88

  8. Sam lays out 23 x 4 in columns, starting with the ones. Is that a good formal layout?

    Circle one:   True   False

  9. Mia works out 23 × 4 like this: 20 × 4 = 80, so the answer is 80. What mistake did she make?

    • 20 × 4 should have been 60
    • She forgot to add the 3 × 4 part, which is 12
    • She used the wrong times table

  10. Use a formal written layout to work out 45 x 3. What is the answer?

    Answer: ______________

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Answer key

For grown-ups. Fold this page away before handing over the rest.

Multiplying and Dividing Bigger Numbers W1-mt_DyGBW3ZHh3-s1

  1. 92 · 20 x 4 = 80 and 3 x 4 = 12, so 80 + 12 = 92.
  2. 20 x 4 + 3 x 4 · 23 splits into 20 and 3, so 23 x 4 = 80 + 12 = 92.
  3. 20 and 3 · 23 has 2 tens and 3 ones, so it splits into 20 and 3.
  4. True · Short multiplication starts in the ones column, then moves to the tens.
  5. 68 · 30 x 2 = 60 and 4 x 2 = 8, so 60 + 8 = 68.
  6. Write 2 in the ones place and carry the 1 · 12 has 1 ten and 2 ones. Write the 2 and carry the 1 ten into the next column.
  7. 8 x 12 = 96 · 8 x 12 = 96 shows that 96 splits into 8 groups of 12.
  8. True · Sam is good. Columns by place value with ones first keep regrouping safe.
  9. She forgot to add the 3 × 4 part, which is 12 · Partitioning needs both parts added together: 80 + 12 = 92, not just 80.
  10. 135 · 3 x 5 = 15 (write 5, regroup 1), then 3 x 4 + 1 = 13, so 135.
Worksheet · LightMySky