Mental Math
3 digit/ 1 digit
Mental Math 2
3 digit/ 2 digit
Estimate
100

36 ÷ 6

What is 6?

100

313 divided by 4?

What is 78 r1?

100

220 ÷ 10

What is 22?

100

4,678 ÷ 13

What is 359 r 11?

100

Estimate your answer.  

122 ÷ 31

What is 4? (After you round, the problem says 120 ÷ 30)

200

28 ÷ 7

What is 4?

200

237 divided by 6 

What is 39 r3?
200

330 ÷ 33

What is 10?

200

6125 ÷ 49

What is 125?

200

Estimate your answer.

147 ÷ 51

What is 3? (After rounding, 150 ÷ 50)

300

54 ÷ 6

What is 9?

300

791 divided by 6

What is 131 r5?

300

555 ÷ 5

What is 111?

300

4,734 ÷ 70

What is 67 r44?

300

Estimate your answer

239 ÷ 79

What is 3? (After you round, 240 ÷ 80)

400

96 ÷ 12

What is 8?

400

207 divide by 9

What is 23?

400

848 ÷ 4

What is 242?

400

7,683 ÷ 82

What is 93 r57?

400

Estimate your answer.

3599 ÷ 10?

What is 360? (After you round, 3600 ÷ 10)

500

110 ÷ 11

What is 10?

500

872 divided by 9

What is 96 r8?

500

9390 ÷ 3

What is 3130?

500

6,930 ÷ 99

What is 70?

500

Estimate your answer.

8107 ÷ 9

What is 900?  (After you round, 8100 ÷ 9) (Why did the 9 not round?)

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