4th Grade: Unit 4 Math Review

Multiplication

100

50 x 30 = ?

1,500

200

80 x 80 = ?

6,400

300

3000 x 70 = ?

210,000

400

25 x 6 =? 

150

500

36 x 24 = ?

864

Millliters, Liters, Grams & Kilograms

100

3 L = ? mL

3,000 mL

200

4,000 mL = ? L

4 L

300

2 kg = ? g

2,000 g

400

8,000 g = ? kg

8 kg

500

1.8 kg = ? g

1,800 g

Multistep Number Stories

100

Wooden bat = $49

Metal bat = $74

Glove = $35

Helmet = $22

Mr. Elliot needs 9 helmets and 8 gloves. How much will they cost in all?

9 x 22 = $198

8 x 35 = $280

198 + 280 = ?

= $478

200

Wooden bat = $49

Metal bat = $74

Glove = $35

Helmet = $22

Mr. Ballantine wants to buy 6 bats for his team. How much more would it cost for him to buy 6 metal bats than 6 wooden bats?

6 x 74 = $444

6 x 49 = $294

444-294 = ?

= $150 

300

Wooden bat = $49

Metal bat = $74

Glove = $35

Helmet = $22

Mrs. Bestrin buys 5 wooden bats and gives the cashier $300. How much change does she get?

5 x 49 = $245

300-245 = ?

= $55

400

Borzoi, Raccoon and Sporky drive together from their home to visit their grandparents. Borzoi drives 55 miles, and Raccoon drives two times as far as Borzoi. Then Sporky drives twice as far as Raccoon and Borzoi combined, which gets them to their grandparents house. 

How far did Sporky drive?

Borzoi drives 55 miles.

Raccoon drives 110 miles. (55 x 2 = 110)

Answer:

Sporky drives 165 miles (110 + 55 = 165)

500

Mrs. Wolfe is buying a tablet for $582. She paid for the tablet using four $100 bills, 18 $10 bills, and 1 $5 bill. How much did Mrs. Wolfe pay?

Write the number models to show your thinking.

Did she pay the exact amount, too little, or too much? (Explain)

4 x 100 = $400

18 x 10 = $180

1 x 5 = $5 

Answers:

Number model: 400 + 180 + 5 = m

= $585

Did she pay the exact amount, too little, or too much?

585 - 582 = $3

She paid too much, she needs $3 back in change. 

Area & Perimeter

100

#1

for 100

200

#2

for 200

300

#3

for 300

400

#4

for 400

500

#5

for 500

Random

100

List the first 6 multiples of 8

8, 16, 24, 32, 40 and 48

200

List all the factor pairs for 84.

1, 84, 2, 42, 3, 28, 4, 21, 7, 12

300

Is 37 a prime or composite number? Explain.

37 is a PRIME number, it has only two factors. 1 and 37.

400

Write 567,403 in expanded form.

500,000 + 60,000 + 7,000 + 400 + 3 

500

Solve using U.S. traditional subtraction.

87,804 - 23,246 = ?

= 64,558