Math Review

Regrouping Addition

100

685+250=

935

200

829+302=

1,131

300

300+225+125=

650

400

915+625+430=

1,970

500

1,000+666+515=

2,181

Regrouping Subtraction

100

60-49=

11

200

81-57=

24

300

613-225

388

400

782-466=

316

500

900-519=

381

Multiplication

100

6x7=

42

200

8x9=

72

300

9x13=

117

400

11x12=

132

500

8x15=

120

Area

100

Given the rectangle's area, find the unknown side length.

A=60

6cm

x cm

60

200

Given the rectangle's area, find the unknown side length.

A=49m

7m

x m

7

300

What is the area?

12ft

12ft

144ft

400

Given the rectangle's area, find the unknown side length.

A=225

15in

x

15in

500

What is the area?

30in

30in

900

Perimeter

100

Determine the perimeter of each rectangle with the following sides. 

149 m

76 in

450

200

Determine the perimeter of each rectangle with the following sides. 

2m 10cm

45 cm

510

300

Given the rectangles perimeter, find the unknown side length.

P=180cm

40cm

x cm

50cm on both sides or 100cm altogether

400

Determine the perimeter of each rectangle with the following sides. 

35cm

40in

150

500

Given the rectangles perimeter, find the unknown side length.

P=1,000

150m

x m

350m or 700m altogether