Math Review 418/501

Multiplying Decimals

100

8 x 5.2

41.6

200

7.4 x 2

14.8

300

82.65 x 5

413.25

400

Chloe bought 5 bananas that weighed 7 lbs in total. Rebecca bought watermelons that weighed 16.092 times more pounds than the bananas. How heavy were the watermelons?

112.644

500

Alex has $19.72. Andrew has 13 times the amount of money Alex has. How much money do they have altogether? Round your answer to the nearest tenth.

256.40

Exponents

100

10⁴ = ?

10,000

200

10⁵ = ?

100,000

300

10³ x 2.5

2,500

400

Steve has 10² more gummy bears than Alexa. Alexa has 102.3 gummy bears. How many gummy bears does Steve have?

202.3

500

 Maria had 10³ toy cars. Leon had 10⁴ toy cars. How many toy cars did Maria and Leon have altogether?

11,000

Adding Decimals

100

1.8 + 3.2

5.0

200

6.92 + 3.6

10.52

300

98.6 + 12.436

111.036

400

Xavier weighs 84.2 lbs. Sarah weighs 78.962 lbs. How much does Xavier and Sarah weigh altogether?

163.162 lbs

500

Jamie had 9.73 liters of water in his water bottle. Emily had 7.829 liters of water in her water bottle. Michael had 14.538 liters of water in his water bottle.  How much water do they have altogether? Round your answer to the nearest hundredth. 

32.1 liters 

Metric Conversion

100

1 meter = ? cm

100

200

3 meters + 5 meters = ? mm

8,000 mm

300

4.2 meters = ? mm

4,200 mm

400

DAILY DOUBLE!

Karen is 397 cm. Adrien is 463 cm. How tall are they altogether? Express your answer in meters.

8 meters and 60 centimeters

500

Saria ran 82 meters. Kaylie ran 2.3 meters more than Saria ran. If Kaylie wanted to run 1 kilometer, how many more meters does she need to run? Express your answer in meters. 

811.4 meters

Challenge Questions

100

3*7/-2

(*= times and / = divided by)

-10.5

200

3x*(4/2x)=6

x=?

(*= times and / = divided by)

1

300

5-3*(x*0.5)=4

x=?

(*= times and / = divided by)

4

400

Nate has 4 kids. Carly has 2 more kids than Nate. Greg has 2 more kids than 4 less kids of Blake. Blake has 3 kids more than Carly. How many kids does Greg have?

7 kids

500

DAILY DOUBLE!

Ava and Adam are going to a restaurant.They paid together, and they total cost without tax was $53.31. Tax was 5%. Ava said that she would pay for half of what the final bill was, and Adam had to pay the other half. How much money does Adam have to pay?

$27.99