# Math

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For the decimal 8.57932
What is the place value of 5? Ten Thousandths
What is the place value of 2? Ones

Write each of the following as a common fraction or mixed number
4.0171

Arrange in order from smallest to largest
2.05, 25/10, 2.0513, 2.059, 251/100, 20515, 2.052, 2.051.
Answer: 2.05, 2.051, 2.052, 2.059, 251/100, 2.0513, 2.0515, 25/10

Lula wants to round 76.24491 to the largest hundredth. She first rounds 76.24491 to 76.245 and then rounds 7.245 to 76.25 and claims that this is the final answer. What is wrong with this approach?

27.4 + 213.321 + 39.38

36. 45.6 – 8.75

48. Add thirty-eight and nine tenths, five and fifty-eight hundredths, seven, and fifteen and eight tenths.

72. Business and Finance: Alem’s restaurant bill is pictured below. Estimate his total by rounding to the nearest dollar.
\$18.25
\$ 8.75
\$ 6.80
\$ 7.40
\$ 1.70
\$42.90 = \$43.00

Business and Finance: Claudia earns \$6.40 per hour (h). For overtime (each hour over 40 h) she earns \$9.60. If she works 48.5 h in a week, what pay should she receive?

Business and Finance: To find the simple interest on a loan for 1 year at 12.5%, multiply the amount of the loan by 0.125. What simple interest will you pay on a loan of \$1,458 at 12.5% for a year?

Business and Finance: In a bottling company, a machine can fill a 2-liter (l) bottle in 0.5 second (s) and move the next bottle into place in 0.1 s. How many 2-l bottles can be filled by the machine in 2 h?

Crafts: A circular coffee table has a diameter of 5 ft. What will it cost to have the top refinished if the company charges \$3 per square foot for the refinishing?

. 0.52/3.2318
52. Business and finance: Seven employees of an office donated a total of \$172.06 during a charity drive. What was the average donation?

74. Four brands of soap are available in a local store ANSWERS
BRAND OUNCES TOTAL PRICE UNIT PRICE
SQUEAKY CLEAN 5.5 \$0.36 \$0.07
SMELL FRESH 7.5 \$0.41 \$0.05 FEEL NICE 4.5 \$0.31 \$0.07
LOOK BRIGHT 6.5 \$0.44 \$0.07
Compute the unit price and decide which brand is the best buy

Find the decimal equivalents for each of the following mixed number
20. 7 ¾

Complete each of the following statement, using the symbol < or >
30. 5/16 _0.313

• Math - ,

For the decimal 8.57932
What is the place value of 5? Ten Thousandths
What is the place value of 2? Ones
That number is:
eight ones +
five tenths +
7 hundredths +
9 thousandths +
3 ten thousandths +
2 hundred thousandths

• Math - ,

Lula wants to round 76.24491 to the largest hundredth. She first rounds 76.24491 to 76.245 and then rounds 7.245 to 76.25 and claims that this is the final answer. What is wrong with this approach?
--------------------------
I do not agree
If it were 76.245, yes 76.25
BUT it is not.
It is 76.24 + .00491
AND
.00491 is LESS THAN .00500
It is only if the next number is five or more that you round up.
So I say, 76.24

• Math - ,

27.4 + 213.321 + 39.38
Answer: 280.100 (I do not get the 286 anyway)
not precise to more than tenths because 27.4 is NOT 27.400
so I say

280.1
period

• Math - ,

I do not have time to repeat the rest but it looks like you are doing them right.

• Math - ,

A circular coffee table has a diameter of 5 ft. What will it cost to have the
top refinished if the company charges \$3 per square foot for the refinishing?

• Math - ,

what is the place value of 5? tenths
what is the place value of 2? hundred-thousandths