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18 basic math problems

10. In the number 456,719

A) What digit tells the number of thousands?
B) What digit tells the number of tens?

12. In the number 324,678,903

A) What digit tells the number of millions?
B) What digit tells the number of thousands?

32. Business and finance. Inci had to write a check for $2,565. There is a space on the check to write out the amount of the check in words. What should she write in this space?

Name the property of addition that is illustrated. Explain your choice of property.

6. 9+7=7+9
8. 8+0=5

Perform the indicated addition.

12. [see attachment]

Do the indicated subtraction and check your results by addition.

20. [see attachment]

For various treks by a hiker in a mountainous region, the starting elevations and various changes are given. Determine the final elevation of the hiker in each case.

42. Starting elevation 6,907 feet, decrease of 511 feet, decrease of 203 feet, increase of 419 feet.

Round each of the following numbers to the indicated place

18. 931,000, the nearest ten thousand

54. Business and finance. Amir bought several items at the hardware store: hammer, $8.95; screwdriver, $3.15; pliers, $6.90; wire cutters, $4.25; and sandpaper; $1.89. Estimate the total cost of Amir's bill.

Multiply.

46. [see attachment]

Divide.

54. [see attachment]

Evaluate.

24. [see attachment]
48. [see attachment]

Use your calculator to evaluate each of the following expressions.

68. 23 - 4 x 5

Find the perimeter of each figure. (The figure is an odd shape I was not able to include) here are the measurements in ft).

4. 5ft, 5ft, 6ft, 6ft, 10ft

Find the area of each figure. (The figure is an odd rectangular/squared shape I was not able to include) here are the measurements in ft)

24. 40ft, 25ft, 10ft, 10ft

48. Geometry. A storage bin is 18 ft long, 6 ft wide and 3 ft high. What is its volume in cubic feet?

Attachments

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Problems I need Help With

Exercises #'s 10, 12, 32

The digits go: million, - 100 thousand - 10 thousand - thousand, - hundred - ten - one.

10. In the number 456,719

A) What digit tells the number of thousands?

6

B) What digit tells the number of tens?

1

12. In the number 324,678,903

A) What digit tells the number of millions?

4

B) What digit tells the number of thousands?

8

32. Business and finance. Inci had to write a check for $2,565. There is a space on the check to write out the amount of the check in words. What should she write in this space?

Two thousand, five hundred sixty-five dollars and 00/100 cents.

Exercises #'s 6, 8, 12

Name the property of addition that is illustrated. Explain your choice of property.

6. 9+7=7+9

Commutative property (it doesn't matter what order you add the numbers): a + b = b + a

8. s

Identity (any number plus 0 stays the same; this statement 8 + 0 = 5 is false): a + 0 = a

Perform the indicated ...

$2.19