Use mental math to Multiply
Round to the nearest ten and solve
Use compatible numbers to estimate
Multiply
Multiply
100

40 x 10 =

What is 400?

100

27 x 21 =

What is 30 x 20 =600?

100

29 x 31 = 

What is 25 x 30= 750?

100

18 x 34 =

What is 612?

100

39 x 10 = 

What is 390?


200

60 x 20 =

What is 1,200?

200

53 x 32 =

What is 50 x 30 =1,500?

200

73 x 18 =

What is 70 x 20 =1,400?
200

51 x 15 = 

What is 765?

200

56 x 30 = 

What is 1,680?

300

80 x 50 =

What is 4,000?

300

35 x 42 =

What is 40 x 40 - 1,600?

300

24 x 38 =

What is 25 x 40 = 1,000?

300

53 x 17 =

What is 901?

300

41 x 20 =

What is 820?

400

30 x 90 =

What is 2,700?

400

64 x 16 =

What is 60 x 20 = 1,200?

400

42 x 49 =

What is 40 x 50= 2,000?

400

26 x 28 =

What is 728?

400

60 x 30 =

What is 1,800?

500

60 x 60 =

What is 3,600?

500

44 x 51 =

What is 40 x 50 = 2,000?

500

63 x 87 = 

What is 60 x 90 = 5,400?

500

22 x 66 =

What is 1,452?

500

50 x 50 =

What is 2,500?

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