PracticeQuestionsYears 1–7
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Multiplying and dividing by 10 and 100

Year 4 · Lower Key Stage 2 · 4NF-3, 4MD-1 — Scale facts by 10 and 100; multiply and divide whole numbers by 10 and 100

Draft — awaiting teacher review

Builds on: Thousands: place value and the number line (Year 4), Adding and subtracting: mental and column methods (Year 3)

I

Concept Anchor

When you multiply by 10, every digit moves one place to the left. A 0 fills the empty ones place. Dividing by 10 moves digits one place to the right.

Worked example

34×1034 \times 10

  1. 1.3 tens becomes 3 hundreds.
  2. 2.4 ones becomes 4 tens.
  3. 3.The ones place is empty, so write 0.
  4. 4.34×10=34034 \times 10 = 340.
II

Guided Check

8×4=328 \times 4 = 32. What is 8×4008 \times 400?

    III

    Independent Diagnostic Practice

    Q1Year 44MD-1 — Multiply by 10·Fluency·●○○Draft — awaiting teacher review

    What is 34×1034 \times 10?

    Q2Year 44NF-3 — Scale a fact by 10·Reasoning·●●○Draft — awaiting teacher review

    6×7=426 \times 7 = 42. So what is 60×760 \times 7?

    Q3Year 44MD-1 — Divide by 100·Problem Solving·●●●Draft — awaiting teacher review

    £5,600 is shared equally between 100 people. How much does each person get?