Mental Math Activities #2

Grade 1

Listen carefully. (Teacher claps four times.)

How many claps did you hear?

2. Show me six.

3. Which number is greater, five or one?

4. What number comes after four?

5. How many legs does a bird have?

6. How many sides does a triangle have?

7. What number comes next…2,3, ___?

8. Which number is less, four or two?

Grade 2

Write the number that comes after Write the number that comes

before

1. 8 5. 16

2. 5 6. 33

3. 25 7. 40

4. 11 8. 22

9. 75

10. 99

Grade 3

1. (18 – 9) x 7 + 4

2. (13 – 5) x (6 – 5)

3. Word form for: 108

4. Round to nearest ten cents: 37¢

5. Factors of 6

6. Geometric figure: shape of a soup can

7. Number of centimeters in a meter

8. Number of quarts in a gallon

9. Number of quarters in $2.00

10. Number of tens in 320

Grade 4

1. 10 less than 40

2. 2 x 3 + 8 – 1

3. Nearest ten: 28

4. 67 – 4

5. 8 x 12

6. Value of 2 dimes and 4 nickels

7. Number of months in one year

8. Number of sides on 3 triangles

Grade 5

1. (18 – 9) x 7 + 4

2. (13 – 5) x (6 – 5)

3. Word form for: 108

4. Round to nearest ten cents: 37¢

5. Factors of 6

6. Geometric figure: shape of a soup can

7. Number of centimeters in a meter

8. Number of quarts in a gallon

9. Number of quarters in $2.00

10. Number of tens in 320

Grade 6

1.1 × 700

2. 900 × 40

3. 64,000 ÷ 0.8

5. If 5/10 of a number is 80, what is the number?

6. Estimate 56 × 3.

7. Which fraction is smaller?

8. What is the product of the factors of 6?

(missing problems numbers were problems which didn’t convert from pdf very well 😦 )

Source: NC Department of Public Instruction