Math review

Addition/ Subtraction

100

673 + 222= ?

895

200

452- 234= ?

218

300

745 + 176= ?

921

400

768- 459= ?

309

500

639 - 259= ?

380

Order and Grouping to Multiply

100

2 x 4 x 5=?

40

200

(8 x 3) + (9 x 6)=?

78

300

(30 x 7) + 198= 

408

400

(40 x 3) + (90 x 6) = ?

660

500

20 x 2 x 7=?

280

Area

100

Rectangle 

Length: 8 cm

Width: 9 cm

72 cm²

200

Square 

Length: 4 inches

16 inches ² 

300

Mrs. Miller decides to cover her bulletin board with paper. Her bulletin board is 12 feet in length and 4 feet in width. What is the area of the paper that Mrs. Miller needs for her bulletin board?

48 feet²

400

Look at picture of area of an irregular shape

answer is on back of paper

500

Look at picture of area of an irregular shape

answer is on back of paper

Multiplication/ Division

100

Since 3 x 6= 18, what is 6 x 3= ?

What is the reason?

18 

Commutative property

200

7 x 3 x 10 = 10 x 3 x ?

What number would be the question mark to make the number sentence correct?

7

300

56/ 7= ?

8

400

Ms.Smith has 3 fish tanks. There are 6 fish in each tank. Which number sentences can be used to find how many fish Ms. Smith has in all?

a. 3 + 6= ?

b. 6 x 3= ? 

c. 6 / 3 = ?

d. 3 x 6 = ?

b and d

500

Jacob bought red, white, and blue balloons. He bought 8 red balloons and 12 white balloons. He bought 3 times as many blue balloons as red balloons. How many balloons did Jacob buy?

44 balloons 

Decimals

100

23.4 x .6

14.04

200

54.6 x 5.2 

283.92

300

56.3 x 6.2

349.06

400

9.57 x 0.4 

3.828

500

Where would the decimal go in this product?

87.6 x .234= 204984

20.4984