Show:
Multiplication
Ratios
Proportions
Long Division
Decimals & Fractions
100
17 x 24 = ?
408
100
What are the three ways you can write a ratio?
a/b, or a:b, or a to b
100
Solve for p by cross multiplying. 18/6 = 6/p
18p=6 x 6 18p = 36 p = 2
100
195 divided by 3 = ?
65
100
What is 1/2 written as a decimal? (pronounce it correctly for the points)
0.5
200
34 x 29 =
986
200
Make an equivalent ratio for the ratio: ten to seven
(various answers)
200
Solve for p using cross multiplication. 4p = 48/60
4p = 48 x 60 4p = 2880 p = 720
200
518 divided by 14 = ?
37
200
Does the numerator or the denominator go inside the box when dividing to find the decimal?
numerator
300
52 x 97 =
5,044
300
A lifeguard-training program includes 16 hours of instruction in basic first aid and 8 hours of instruction in CPR. What is the ratio of hours of CPR to first aid instruction?
8:16
300
Solve for p using cross multiplication. 8.1/27 = p/5
27p = 8.1 x 5 27p = 40.5 p = 1.5
300
1509 divided by 5 = ?
301 4/5
300
Write 0.75 as a simplified fraction.
3/4
400
1.05 x 1.2 =
12.6
400
A pack of 12 pens costs $5.52. A pack of 8 pens costs $3.92. Which is the better deal? (explain your answer in order to get the points!)
The 12 pack costs $0.46 per pen and the 8 pack costs $0.49 per pen, so the 12 pack is the better deal.
400
A car can travel 350 miles on 14 gallons of gas. How far can it travel on 18.1 gallons?
14y = 350 x 18.1 14y = 6335 y = 452.5 It can travel 452.5 miles.
400
3018 divided by 23 =
131 5/23
400
Write 1/9 as a decimal.
0.1 repeating
500
? x 47 = 3, 196
68
500
Which is the better deal- an 8 oz package of pretzels for $1.92 or a 12 oz package of pretzels for $2.64? (explain your answer in order to get the points)
The 8oz package is $0.24/oz, and the 12 oz package costs $0.22/oz. So, the 12 oz package is the better deal.
500
A boat can travel 645 miles on 107.5 gallons of gasoline. How much gasoline will it need to go 541.2 miles?
645m = 107.5 x 541.2 645m = 58,179 m = 90.2 It will need 90.2 gallons of gasoline.
500
8451 divided by 92 =
91 79/92
500
Write 5/9 as a decimal.
0.5 repeating