Unit 1 Review

Adding and Subtracting Decimals

100

3.7 + 0.3 

4

200

7.9 + ? = 16.7

8.8

300

0.33 + 1.74

2.07

400

Kat and Chris saved up $ 81.75 and $ 45.25 respectively to buy a gift for Mother's Day.  How much money in all have the siblings set aside for the gift?

$127

500

Johnny lives in New York and he plans to attend his friend's wedding in New Hampshire.  He saved up $100 for the flight ticket, and the total price of the ticket is $234.8. How much more does Johnny need to save?

$134.8

Multiplying Decimals

100

1.45 X 1000

1450

200

7 X 0.28

1.96

300

6.82 X 7.3

49.786

400

Each batch of cookies mix need 0.4 cups of sugar, and each batch can make 16 cookies.  If Ashley is making 4 batches of cookies, how much sugar does she need? 

25.6 cups

500

Tom was paid $5.50 for a job he did on the farm for 1 hour.  At the same rate, how much would he be paid if he did the same job for 3.5 hours?

$19.25

Dividing Decimals

100

0.4 / 2 

0.2

200

6.8 / 0.7

9.714

300

26/0.009

2888.88

400

Amira went to the shop to buy 22.8 pounds of candles. She divided the candles equally and packed them in boxes.  If each box of candles weighed 3.8 pounds, how many boxes did Amira use to pack the candles?

6 boxes

500

Joey walked 6.8 miles in 1.5 hours.  What was the distance walked by him in 1 hour?

4.533 miles

Conversions and Simplifications

100

Change 3 1/2 into an improper fraction

7/2

200

Change 37/3 into a mixed number

12 1/3

300

Change 8 2/7 into an improper fraction

58/7

400

Simplify 12/78 

6/39

500

Change 2 8/72 into an improper fraction

152/72

Multiplying and Dividing Fractions

100

7 X 2/3

14/3

200

2/5 X 3/7

6/35

300

1 2/3 X 2 4/5

112/15

400

Thomas bought 7 pieces of wood which measured 2/3 meters each.  He used 5 pieces of wood for his kitchen project.  What was the total length of wood he used? 

10/3 meters

500

At a school, there are 64 students and 80 staff members. 5/8 of the students are boys. How many girls are there in the school?

40 girls