Math Operations Review

Addition

100

389 + 187 =

576

200

Estimate to hundreds, then find the sum

427 + 325 =

700

300

42 + 8 + 30 + 8

88

400

Estimate to the nearest 10 and find the sum.

592 + 384 =

1000

500

553 + 296 =

849

Multiplication

100

(5x2) + (5x3) =

25

200

Is this true?

(150 + 110) + 40 = (40 + 150) + 110

Yes

300

4X8 = (8xn)  What is n?

n= 4

400

30 x 5 =

150

500

18 x 10

180

Division

100

49 / 7 =

7

200

16 / 4 =

4

300

There are 24 slices of pizza divided by 3 friends. How many slices do they each get?

8

400

There are 10 new baby tortoises. They were sold and Zaharis made $150. How much did each baby cost?

$15

500

32 / 8

4

Geometry

100

What is the area of a rectangle if the sides are 6+6+9+9?

54 square units

200

Which is greater 3/6 or 5/6? 

5/6

300

An equilateral triangle has 12 inch sides. What is the perimeter?

36 inches

400

What is the perimeter of an octagon if all the side are 10 inches.

80 inches

500

The area is 36 sq. units. One side is 9 sq. in. What is the missing side?

4 sq. inches

Subtraction

100

801 - 689 =

112

200

576 -187 =

389

300

Estimate  to the nearest 10, and then subtract.

229 - 165 = 

0

400

129 - 31 = 

98

500

Estimate to the nearest 100, then subtract.

498 - 234 =

300