HMH 5th Grade Math - Module 1 Review

Missing Exponent

100

4 x 10^x = 400,000

Solve for x

x=5

200

800 x 10^x = 8000

solve for x

x=1

300

40 x 50 x 10^x = 2,000,000

Solve for x

x=3

400

80,000 x 10 x 10 x 10^x = 800,000,000

Solve for x

x = 2

500

3000 x 900 = 270 x 10^x

Solve for x.

x=4

Exponent Multiplication

100

800 x 50

40,000

200

84 x 10³ x 10 x 10

8,400,000

300

10⁷ x 10² = x

Solve for x. 

1,000,000,000

400

(40 x 10³) + (5 x 10⁴) = x

Solve for x.

40000+50000 = 90,000

500

(2 x 10⁸) x (7 x 10⁵) = 1400 x 10^x

Solve for x.

140,000,000,000,000 = 1400 x 10^x

x = 11

Place Value

100

What is the value of the '3' in the following:

125309

300

200

What is the value of the '8' in the following?

789,126

80,000

300

Write a number where the digit '7' has

1/10

 of the value of the digit '7' in the following number:

17,365

Any number where the 7 is in the hundreds spot

Examples:

785

65,700

400

1/10 of 7000 = Answer.

In this 'answer', the digit '7' will end up in which place value?

hundreds

500

750 x 10⁴ = Answer.

In this 'answer', the digit '5' will end up in which place value?

7,500,000

hundred thousands

Multiplication B

100

55 x 80

4400

200

75 x 2000

150,000

300

147 x 88

12,936

400

756 x 75

56,700

500

8407 x 63

529,641

Multiplication A

100

The cruising speed of a jumbo jet is 900 miles per hour. How far does it travel in 5 hours?

4500 miles

200

How many seconds are there in 25 minutes?

1500

300

10 sheets of cards are 30 mm thick.  How thick are 600 cards?

1800 mm

180 cm

400

The cruising speed of a jumbo jet is 915 miles per hour.  How far can it travel in 21 hours?

19215 miles

500

What is the product of 2,395 and 214?

512,530