Math Drill Pages

Multiplying by 10 and 100 Worksheet

This sheet practices multiplying by 10, 100 and 1,000, then by multiples of 10 such as 40 and 70. These are the steps students need before 2-digit by 2-digit multiplication. It has 30 problems and takes about 10 minutes.

Grade
Grade 3–5
Problems
30
Time
About 10 minutes
Standard
3.NBT.A.3, 5.NBT.A.2
Download PDF (US Letter) Download PDF (A4)

Two pages: the worksheet, then the answer key. No sign-up needed.

Worksheet preview

Part A: Times 10, 100 and 1,000 Multiply.

  1. 98 × 100 = 9800
  2. 34 × 10 = 340
  3. 72 × 100 = 7200
  4. 44 × 10 = 440
  5. 3 × 10 = 30
  6. 76 × 1000 = 76000
  7. 93 × 1000 = 93000
  8. 53 × 1000 = 53000
  9. 70 × 10 = 700
  10. 28 × 1000 = 28000
  11. 2 × 10 = 20
  12. 8 × 100 = 800

Part B: Multiples of 10 Multiply. Use the basic fact, then the zero.

  1. 8 × 50 = 400
  2. 9 × 60 = 540
  3. 60 × 2 = 120
  4. 50 × 2 = 100
  5. 90 × 2 = 180
  6. 6 × 30 = 180
  7. 30 × 9 = 270
  8. 8 × 30 = 240
  9. 3 × 60 = 180
  10. 70 × 2 = 140
  11. 30 × 7 = 210
  12. 9 × 50 = 450

Part C: Missing factor Is it 10 or 100? Write the missing number.

  1. 68 × 10 = 680
  2. 68 × 10 = 680
  3. 88 × 100 = 8800
  4. 62 × 100 = 6200
  5. 96 × 10 = 960
  6. 58 × 10 = 580

Tips for teachers and parents

  • Explain the pattern with place value: times 10 moves every digit one place left, times 100 moves it two places, and times 1,000 moves it three.
  • For multiples of 10, split the problem. 6 × 70 is 6 × 7 = 42, then times 10, which is 420.
  • Count the zeros only as a check. Students who understand why the digits shift make fewer errors later with decimals.
  • In Part C, ask "how many places did the number move?" to decide between 10 and 100.

Common mistakes

  • Writing too many or too few zeros, such as 40 × 30 = 12,000. Split it into 4 × 3 = 12 and 10 × 10 = 100, so 1,200.
  • Treating 5 × 80 as a pattern fact and missing the extra zero from 5 × 8 = 40. The answer is 400, with two zeros.

What to practice next

Use these skills in 2-digit by 2-digit multiplication, where the second partial product is a multiple of 10.

Frequently asked questions

What is the rule for multiplying by 10, 100 and 1,000?

Each digit moves one, two or three places to the left, and zeros fill the empty places. 37 × 100 is 3,700.

How do you multiply by a multiple of 10 like 60?

Multiply by 6, then by 10. 4 × 60 is 24 × 10, which is 240.

Which grades use this worksheet?

Grade 3 multiplies one-digit numbers by multiples of 10, and grade 5 extends the pattern to powers of 10.