Question

1. Subtract:

a. 14 – 7 – 5
b. (35 – 20) – 3
c. 45 – (23 – 14)
d. 56 – 32 – 5

2. James has established the following monthly budget for himself:

Rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $300
Food. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $175
Entertainment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $125
Savings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $200
Car loan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $250
Personal needs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 50
Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 25
Insurance payments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $125

How much does James earn each month? (Assume that the budget above accounts for James’s entire monthly income.)

3. Regroup the numbers in the following problems, putting the numbers that add up to 10 or a multiple of 10 in parentheses.
a. 2 + 9 + 8
b. 3 + 5 + 4 + 7
c. 4 + 2 + 16
d. 31 + 4 + 9

Answer 1

a. 2 b. 12 c. 36 d. 19

James makes $1,250.

a. (2+8)+9 b. (3+7)+5+4 c. (4+16)+2 d. (31+9)+4

Explanation:

You basically follow PEMDAS for the first section. You would do the subtraction inside the parenthesis first and then you will subtract left to right as you go.

You will add up all of the things he has on his budget to find out how much he earns.

I believe that is correct but I am not sure.

Hope it helps! (:

Answer 2

A.2 B.12 C.36 D.19

James earns $1250 a month

A.9+(8+2) B.5+4+(3+7) C.2+(16+4) D. 4+(31+9)

Explanation:

In order to calculate that you just have to do the math operations in the prenthesis first and then do the math form left to right:

a. 14 – 7 – 5=14-12=2

b. (35 – 20) – 3=15-3=12

c. 45 – (23 – 14)=45-9=36

d. 56 – 32 – 5=56-37=19

Second one

To calculate how mow does James earns you just have to add all of his budget:

$300+$175+$125+$200+$250+50+$25+$125=$1250

Third one

To do this you just have to find the number that add up to ten or multiples of ten, in the first one you have 8+2=10, in the second you have 7+3=10, in the third one you have 4+16=20 which is a multiple of 10, and in the last one you have 31+9=40 wich is also a multiple of 10.