(Decimals)
168.45 + 541.6
If you buy 5 apples for $10, what is the cost per apple?
$2 per apple
5
Double Jeopardy
x + 5 = 12
x = 7
A rectangle has a length of 8 cm and a width of 5 cm. What is the area of the rectangle?
40 cm2
A cube has a side length of 7 in. What is the surface area of the cube?
7 * 7 = 49
49 * 6 = 294 in2
Double Jeopardy
83.15 X 6
498.9
A car travels 180 miles in 3 hours. What is the unit rate in miles per hour?
60 miles per hour
A submarine is at –50 feet below sea level. If it rises to 20 feet. What level is it at now?
-30 feet below sea level
x − 9 = 4
x = 13
A triangle has a base of 15 yd and a height of 6 yd. What is the area of the triangle?
45 yd2
Find the surface area of the shape.
(2.5 * 3.5)/2 = 4.375
4.375 * 2 = 8.75
2 * 4.3 = 8.6
3.5 * 2 = 7
2.5 * 2 = 5
5 + 7 + 8.6 + 8.75 = 29.35
46.168 - 8.54
37.628
A recipe uses 4 cups of flour for 2 batches of cookies. How many cups of flour are needed per batch?
2 cups per batch
A bank account has –$25. You deposit $40. What is your new balance?
$15
3x = 21
x = 7
A trapezoid has bases of 8 in and 14 in, and a height of 5 in. What is the area of the shape?
55 in2
A = 1/2 (5) (8 + 14)
A = 1/2 (5) (22)
A = 11 (5)
Find the surface area of the shape.
A = 2.5 * 3.5 = 8.75
A= 3.5 * 2 = 7
A= 2 * 2.5 = 5
A= 10 + 14 + 17.5
41.5 ft2
323.476 / 7.1
45.56
A runner jogs 7.5 miles in 1.5 hours. What is the unit rate in miles per hour?
5 miles per hour
The temperature in the morning was –6°F. By afternoon, it increased by 9°F. What is the temperature now?
3°F
x/4 = 6
x = 24
The area of the triangle is 57.6 m2. The height of the triangle is 12. What is the base?
height = 9.6
57.6 = 1/2*b*12
57.6 = 6b
b=9.6
What is the surface area of the triangular prism? 
Triangle:
A = 1/2 *8 *3 = 12
A = 1/2 * 8 * 3 = 12
8 * 12 = 96
12 * 5 = 60
12 * 5 = 60
12 + 12 + 96 + 60 + 60
240 cm2
5.16 X 4.9
25.284
You earn $45 for working 5 hours. If your pay increases by $1.50 per hour after a raise, how much will you earn in 8 hours at the new rate?
Original rate: $45 ÷ 5 = $9/hour
New rate: $9 + $1.50 = $10.50/hour
Earnings: 8 × $10.50 = $84
A scuba diver starts at sea level (0 feet), descends 35 feet, then ascends 12 feet, and then descends another 18 feet. What is the diver’s final position relative to sea level?
0 – 35 = –35
–35 + 12 = –23
–23 – 18 = –41 feet
2x > 14
x > 7
A trapezoid has an area of 96 m2. One base is 14 m and the other base is 18 m. What is the height of the trapezoid.
height = 6 m
96 = 1/2h(14+18)
96 = 1/2h(22)
96 = 11h
Find the surface area of the shape.
Square:
A = 2.5 * 2.5 = 6.25
Triangle:
A = 1/2 (2.5) (5) = 6.25
6.25*4 =25
25 + 6.25 =
31.25 ft2