x4 What is absolute value?
The distance in units a number is from zero.
Solve. (-27) - 14 + 39
-2
Frank drives 65 miles per hour for 7 hours. How far did he travel?
455 miles
The temperature at 6 a.m. was –8°C. By noon, it rose by 15°C, but by midnight, it dropped again by 12°C.
What was the final temperature at midnight?
–5°C
Convert to a decimal
5/16
0.3125
Simplify the expression. |-4 – 15| ∙ 28 ÷ 7 + 32
85
Solve. 63 ÷ (8 + 2) - 75
-53.4
Terry needs to save $232. How many hours does he need to work if he gets paid $14.50 per hour.
16 hours
A recipe needs 3/4 cup of sugar. If Mia wants to make 2 and a half batches, how much sugar will she need in total?
1 7/8
15/8
Convert to a decimal
6/24
0.25
|-12 + 52| ∙ (36 ÷ 9) - 43 ÷ 8 + 2
46
Frank has to pay $25 each week for 16 weeks. How can we write this number as an integer?
-400
Tim works 8 hours a day 4 days a week. If he makes $19.25 per hour, how much money will he make in 2 weeks?
$1,232.00
If 5 notebooks cost $12.50, how much will 8 notebooks cost at the same rate?
$20.00
Convert to a decimal
7/26
0.269230
Simplify.
152
x2 What is the difference between whole numbers and integers?
Whole numbers are only positive and integers are both positive and negative.
Eric bought 5 shirts for $29.50 each, two hats for $17.80 each, and a scarf for $15.60. If he has $200 to spend how much will he have left?
$1.30
A rectangle has a length of 12 cm and a width of 8 cm. If the length is increased by 50% and the width stays the same, what is the new area?
144cm2
Convert to a decimal
9/32
0.28125
-61
During a mountain hike, a group of climbers kept track of their changes in elevation (in meters) over the course of a day.
In the morning, they ascended 350 m.
Just before lunch, they descended 475 m.
After lunch, they ascended 260 m.
A sudden storm forced them to descend another 190 m.
Finally, they pushed hard and climbed up 155 m to reach their evening camp.
If the climbers started the day at an altitude of 1,240 m, what was their altitude when they set up camp?
The climbers ended at an altitude of 1,340 m.
Sara works for 9 hours and makes $196.20. Tim works for 6 hours and makes $139.20. What is the difference in their hourly pay?
$1.40 price difference.
Solve for x.
3(x − 7) = 2x + 1
x = 22
Convert to a decimal
5/12
0.416666666....