Mental Math Activity.

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Presentation transcript:

Mental Math Activity

1 About how much is 3272 + 5910?

2 About how much is 3179 - 985?

3 What is 8 x 8?

4 What is 7 x 9?

5 What is 42 ÷ 7?

6 What is 1100 – 400 – 300?

7 What is 1200 + 350 - 150?

8 What time is it?

9 What fraction is shown?

10 What is 8 x 60?

11 What is 70 x 40?

12 What is 70 x 800?

What number is represented below? 13 What number is represented below?

14 What is 1 000 000 + 700 000 + 20 000 + 400 + 10 + 3

15 What is 848 ÷ 4 ?

16 What decimal is shown?

17 About how much is $3.75 + $1.92?

18 About how much is 8.72 - 2.19?

What is the area of the figure below? 19 What is the area of the figure below? 1 cm

What is the missing number in the equation below? 20 What is the missing number in the equation below? 231 + ⃝ = 362