Topic 4

Powers of 10

100

0.56 x 10^{3 =}

560

200

1.98 x 10⁴=

19,800

300

1.29 x 10⁵ = 

129,000

400

DOUBLE JEOPARDY

0.921 x 10⁰=

0.921

500

3.9 x 10^?= 39,000

10⁴

Estimating

100

ESTIMATE!!

267 x 5.8 = 

300 x 6 = 18,00

200

ESTIMATE!!

78.6 x 322 =

80 X 300 = 24,000

300

ESTIMATE!!

278.9 x 33 = 

300 X 30 = 9000

400

ESTIMATE!!

9.87 x 81 = 

10 x 80 = 800

500

ESTIMATE!!

643 x 67.9 = 

600 X 70 = 42,000

Decimal x Whole #

100

56.88 x 32 = 

1,820.16

200

7.89 x 29 = 

228.81

300

DOUBLE JEAOPARDY!

50.9 x 19 =

967.1

400

76.98 x 79 = 

6,081.42

500

68.26 x 97 = 

6,621.22

Decimal x Decimal

100

88.6 x 3.9 =

345.54

200

87.53 x 9.2 = 

805.276

300

4.98 x 0.76 = 

3.7848

400

6.98 x 3.5 =

24.430

500

42.9 x 6.37 = 

273.273

Word Problems

100

Todd purchased 18 boxes of Christmas lights for $19.27 each. How much did Todd pay?

$346.86

200

Joe needs to fill up his gas tank. His tank holds 12 gallons. Gas costs $2.98. How much will it cost for Joe to fill up his tank?

$35.76

300

It takes Tonya 3.27 hours to put together 1 book shelf. How long will it take Tonya to put together 25 book shelves?

81.75 Hours

400

Isaiah gets paid $35.98 an hour. He works for 24 hours straight. How much will Isaiah get paid?

$863.52

500

Gabe is making soup for a huge event. He needs 9.78 cups of broth for 1 batch. Gabe is making 16 batches of soup. How much broth will Gabe need in all?

156.48 cups