Number Forms and Rounding
Addition
Subtraction
Multiplication
Mixed Review
100

Round 5476 to the nearest hundred

5500

100

74+29

103

100

400-158

242

100

37 x 5

185

100

A 4K Ultra HD TV set can be bought for $400 down and 12 payments of $110 each. What is the total cost?

$1720

200

Round 705,618 to the nearest ten thousand

710,000

200

194 + 271 + 368

833

200

67-18

49

200

7 x 6

42

200

A pile of lumber contains 170 boards 10 ft long, 118 boards 12 ft long, 206 boards 8 ft long, and 19 boards 16 ft long. How many boards are in the pile?

513 boards

300

Write the following number in word form:

8,017,623

Eight million, seventeen thousand, six hundred twenty-three

300

5127 + 386 + 2842 + 78 + 687

9120

300

27,452-7849

19,603

300

40,000 x 200

8,000,000

300

During a compression check on an engine, the highest compression in any cylinder was 136 pounds per square inch (psi), and the lowest was 107 psi. The maximum allowable difference between highest and lowest is 30 psi. Did the engine fall within the maximum allowed?

YES
400

Write 3478 in expanded form.

3000+400+70+9

400

The Acme Lumber Co. lumber sales for the last four days were $3280, $2650, $2465, and $2970. What was the lumber companies total sales?

$11,365

400

On Monday the high temperature was 41 degrees. On Tuesday the high temperature was 29 degrees. On Wednesday the high temperature was 37 degrees. What was the difference in Monday and Wednesday's high temperatures?

4 degrees

400

If a machine produces 47 widgets per minutes, how many widgets will in produce in 12 hours.

33,840 widgets

400

A pile of lumber contains 170 boards 10 ft long, 118 boards 12 ft long, 206 boards 8 ft long, and 19 boards 16 ft long. Calculate the total length, or linear feet, of lumber in the pile.

5068 linear feet of lumber

500

Write the number in numeric form: 2 billion, seven hundred twenty-three thousand, eighty-four.

2,000,723,084

500

A machine shop bought 14 steel rods of 7/8-in.-diameter, 23 rods of 1/2-in. diameter, 8 rods of 1/4-in. diameter, and 19 rods of 1-in. diameter. How many rods were purchased?

64 rods

500

A truck loaded with rocks weighs 14,260 lb. If the truck weighs 8420 lb, how much do the rocks weigh?

5840 lbs

500
A gallon is a volume of 231 cubic inches. If a storage tank holds 380 gallons of oil, what is the total volume of the tank in cubic inches?

87,780 cubic inches

500

RAD Electric submitted a bid of $3300 for a certain job. Using billing T&M (time and materials), RAD normally charges $85 per hour. If materials for the job come to $350, and the electrician actually worked for 36 hours, by how much money did RAD underbid the job?

$110

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