GCF
LCM
Rounding
Word Problems
Fractions
100

45 , 12

Factors of 45 1 , 3 , 5 , 9 , 15 , 45

Factors of 12 1 , 2 , 3 , 4 , 6 , 12

Final is 3

100

6, 7

6,12,18,24,30,36,42
7,14,21,28,35,42,49

100

Round 44,989 to the nearest hundred.

45,000

100

Luke was checking how much power his lights used. His first light by itself used 57.19 amps. When he turned on the second light, together they used 147.59 amps. How many amps did just the second light use?

90.4

100

Convert to an the following improper fraction to a mixed fraction:

 24
 ---
 10

 2   1/4

200

18 , 21

Factors of 18 1 , 2 , 3 , 6 , 9 , 18

Factors of 21 1 , 3 , 7 , 21

Final answer is 3

200

10,12

60

200

Round 509 to the nearest ten.

510

200

A weatherman was measuring the amount of rain two cities received over a week. City A received 9.46 inches while City B received 6.6 inches. How much rain did they get total?

16.06

200

Convert the following mixed number to an improper fraction:

10   1/2

21
---  or 21/2
 2

300

33 , 45

Factors of 33 1 , 3 , 11 , 33

Factors of 45 1 , 3 , 5 , 9 , 15 , 45

Final Answer is 3

300

2,8

8

300

Round 9,378 to the nearest thousand.

9,000

300

During a science experiment, Mary found the mass of two rocks to be 23.80 grams and 68.7 grams. What is the total mass of these two rocks?

92.5

300

Solve:

1/6  + 1/6  +  1/6 =

3/6  = 1/2

400

18 , 28

Factors of 18 1 , 2 , 3 , 6 , 9 , 18

Factors of 28 1 , 2 , 4 , 7 , 14 , 28

Final answer is 2

400

5,8

40

400

Round 97,838 to the nearest ten.

97,840

400

Faye had a piece of thread exactly 2.8 yards long. After doing some sewing, she had 0.11 the original amount left. How much does she have left?

0.308

400

Solve

 7/10  + 5/10 + 2/10  = 

14             4              2
---  =    1  ---    =  1  ---
10             10            5

500

18 , 20

Factors of 18 1 , 2 , 3 , 6 , 9 , 18
Factors of 20 1, 2, 4, 5, 10, 20

Final Answer is 2

500

8,11

88

500

Round 426,691 to the nearest thousand.

427,000

500

A full truck weighed 3.4 tons. If the truck was only 0.22 full, how much would it weigh?

0.748

500

Which is lighter? 3 ⁄4 of a pound or 2 ⁄4 of a pound?

2/4

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