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Multiples of ten

Math · Grade 5 · 10 questions

NameDate

1. 40 × 20 = ?

Answer:

2. 30 × 50 = ?

  • 80
  • 150
  • 1,500
  • 15,000

3. 12 × 40 = ?

Answer:

4. 25 × 40 = ?

  • 100
  • 900
  • 1,000
  • 1,100

5. 60 × 30 = 1,800

  • True
  • False

6. 70 × 8 = ?

Answer:

7. 90 × 40 = ?

  • 130
  • 360
  • 3,600
  • 36,000

8. 15 × 20 = ?

Answer:

9. Why is 30 × 40 = 1,200?

  • 3 × 4 is 12, then add the two zeros
  • 3 + 4 is 7, then add zeros
  • 30 + 40 is 70
  • 12 × 100 is wrong

10. 50 × 60 = ?

Answer:

Why the zeros can be set aside and put back at the end.

Grade 510 questions
1

40 × 20 = ?

2

30 × 50 = ?

801501,50015,000
3

12 × 40 = ?

4

25 × 40 = ?

1009001,0001,100
5

60 × 30 = 1,800

TrueFalse
6

70 × 8 = ?

7

90 × 40 = ?

1303603,60036,000
8

15 × 20 = ?

9

Why is 30 × 40 = 1,200?

3 × 4 is 12, then add the two zeros3 + 4 is 7, then add zeros30 + 40 is 7012 × 100 is wrong
10

50 × 60 = ?

0 of 10 answered