Ratios
Are these two ratios proportional? 6:7 and 36:42
YES
Mental Math
200 - 10
190
MENTAL MATH
37 + 68 =
105
MENTAL MATH
3 x 12
36
64 ÷ 4 =
16
MENTAL MATH
1/2 in decimal form
0.5
Sum of two numbers
addition
The ratio of girls to boys on a field trip is 3:4. If there are 9 girls, how many are boys?
12
562 - 191
371
MENTAL MATH
155 + 245 = ?
400
MENTAL MATH
500 x 5 = ?
2,500
Mental Math
42 divided into 6 groups
7
What is 92
81
The difference between two numbers
subtraction
Are these two ratios proportional? 400/600 and 3/5
NO
Mental Math
30 - 60 =
-30
MENTAL MATH
98 + 499 =
597
76 x 15 = ?
1,140
MENTAL MATH
$90 shared among 5 people
$18
544/2=?
272
product
A number used to multiply by or divide by to find equivalent ratios.
Constant of Proportionality
5649 - 3495
2154
MENTAL MATH
30 + x = 951
x = 921
MENTAL MATH
8 x 9 x 2 =
144
MENTAL MATH
125 split into 5
25
What is 50% of 60
30
The result of division.
quotient
Free Points
5
-751+141
-610
MENTAL MATH
345,134 + 56,134 =
401,268
345 x 5 =
1725
MENTAL MATH
675 / 10
67.5
10,930 x 3
32,790
What is 82 in words?
Eight squared
or Eight to the power two
or Eight to the second power