Question

If Sarah starts with $10 and spends all but $3, how much money does she have left?

Complete the following subtraction exercises.
10 – 2 =
14 – 6 =
15 – 9 =
17 – 8 =
13 – 5 =
11 – 8 =
20 – 8 =
16 – 7 =
12 – 9 =
21 – 9 =
11 – 6 =
5 – 5 =
4 – 0 =
16 – 8 =
10 – 5 =
18 – 7 =
13 – 8 =
12 – 4 =

Solve each of the following subtraction problems.
a. 6,321 – 4,879 =
b. 451 – 275 =
c. 15,278 – 6,327 =
d. 23,000 – 14,995 =
e. 54 – 19 =

On February 1, the electricity meter reading for the Smith residence was 19,423 kilowatt hours. On March 1, the meter read 20,288 kilowatt hours. On April 1, the meter read 21,163 kilowatt hours.
a. How many kilowatt hours of electricity did the Smiths use during February?
b. How many kilowatt hours did they use during March?

Last year, Terry earned $19,436. This year, Terry got a raise that increased her income to $23,457.
a. How much more money did Terry make this year?
b. If Terry gets the same raise again next year, what will her total income be then?

The height of the Leibnitz Range on the moon is 35,000 feet. The earth’s highest point, Mount Everest, measures 29,028 feet. How much taller is the Leibnitz Range?

On a word processing test, Iko typed 694 words in 15 minutes. On that same test six days later, Iko typed 753 words in 15 minutes. By how many words did Iko’s speed improve from the first test to the second test?

Perform each operation. Check by using the inverse operation.
a. 769 – 362 =
b. 502 + 17 =
c. 7,802 – 3,461 =
d. 1,432 + 2,568 =

Answer 1

Hi!

#1: Sarah would have $3 left.

#2:

10-2=8

14-6=8

15-9=6

17-6=11

13-5=8

11-8=3

20-8=12

16-7=9

12-9=3

12 – 9 = 3

21 – 9 = 12

11 – 6 = 5

5 – 5 = 0

4 – 0 = 4

16 – 8 = 8

10 – 5 = 5

18 – 7 = 11

13 – 8 = 5

12 – 4 = 8

#3:

a. 6,321 – 4,879 = 1,442

b. 451 – 275 = 176

c. 15,278 – 6,327 = 8,951

d. 23,000 – 14,995 = 8,005

e. 54 – 19 = 35

#4

a. How many kilowatt hours of electricity did the Smiths use during February?

They used 19,423 (I believe)

b. How many kilowatt hours did they use during March?

They Used 865

#5:

Last year, Terry earned $19,436. This year, Terry got a raise that increased her income to $23,457.

a. How much more money did Terry make this year?

39,893 (I believe)

b. If Terry gets the same raise again next year, what will her total income be then?

63,350 ( i believe)

#6: 5,972 Ft taller

#7: 59 words.

#8:

a. 769 – 362 = 407

b. 502 + 17 = 519

c. 7,802 – 3,461 = 4,341

d. 1,432 + 2,568 = 4,000