Math Quiz Competition (2020-2021) Mental Math

78 +10 ------------ 10 less than 88

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I am a solid shape that can roll and slide. I have 2 flat faces and a curved face. Who I am I?

• Cone

• Cylinder

• Cube

• Rectangle

The triangle must total 50. Write the missing number.

• 25

• 21

• 27

• 26

Write the missing number in the addition pyramid.

• 4

• 9

• 8

• 7

Find the number.

• 11

• 12

• 13

• 9

If you subtract 6 from the greatest 2 digit number what will you get?

• 98

• 91

• 92

• 93

The time is 10:30. What the time an hour ago?

• 8:30

• 9:30

• 7:30

• 6:30

55 - 4 tens=____________

• 25

• 13

• 15

• 21

4 tens + 6 ones =3 tens + _________ ones

• 10

• 6

• 4

• 16

90 - 39 ______ 6 less than 57

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