Topic 3 Math Review

Estimation

100

What would you round 178 x 12 to be?

What is 200 x 10 or 200 x 12 

200

Estimate 118 x 36

What is 4,000

300

Estimate 127 x 48

What is 5,000

400

Estimate 180 x 586. Is this an overestimate, or an underestimate?

What is 120,000, overestimate

500

Estimate 790 x 397. Is this an overestimate or an underestimate?

What is 320,000, overestimate

Powers

100

What is 4 x 10³

What is 4,000

200

What is 80 x 10⁴

^{**DOUBLE JEOPARDY**}

What is 800,000

300

True or False: 48 x 10³= 4,800

What is False

400

True or False: 39 x 10²=390

What is False

500

Choose all the expressions that are equal to 5,600
A: 56 x 10²
B: 56 x 10³
C: 56 x10⁴
D: 100 x 56
E: 1,000 x 56

What is A and D

Word Problems

100

There are 45 cans of mixed nuts. If each can has 338 nuts, what is the total number of nuts, n, in all of the cans? (Just tell me the equation, no answer)

What is 45 x 388= n

200

There are 35 large fish tanks at the zoo. Each tank holds 206 gallons of water. How many gallons of water would it take to fill all the tanks?

What is 7,210 gallons

300

A banana contains 103 calories. Last week, Gus and Mark ate a total of 15 muffins. How many calories does this represent?

What is 1,545 calories

400

Maddie has 145 songs on her MP3 player. Tessa has 12 times as many songs as Maddie. How many songs does Tessa have?

What is 1,740 songs

500

Jake ordered 1,015 baseball cards. Mrs. Ras ordered 5 times as many cards as Jake. How many baseball cards did Mrs. Ras order?

What is 5,075 cards

Multiplication

100

302 x 17?

What is 5,134

200

608 x 23?

What is 13,984

300

902 x 35?

What is 31,570

400

360 x 48?

What is 17,280

500

105 x 24?

What is 2,520

Miscellaneous

100

What are the partial products in 367 x 92?

What are 734 and 33,030

200

What are the partial products of 41 x 709?

What are 709 and 28,360

300

Put these decimals in order from greatest to least.

17.68, 18.4, 17.86

*DOUBLE JEOPARDY*

What is 18.4, 17.86, 17.68

400

Choose all the expressions equal to 25 x 4,060
A: 4,060 x 25
B: 20 x 5 x 4,060
C: 25 x (4,000 + 60)
D: 25 x (406 x 10²)
E: (20+5) x 4,060

What is A, C, and E

500

Choose all the expressions that are equal to 38 x 8,500.
A: (85 x 10³) x 38
B: (30+8) x (850 x 10)
C: 30 x 8 x 8,500
D: 8,500 x 38
E: (30+8) x 8,500

What is B, D, and E