Say What?
30+30
60
Mental Math
20-10
10
MENTAL MATH
37 + 68 = ?
105
MENTAL MATH
2 x 12
24
136/4
34
The answer to an addition problem
sum
Anne ate lunch at school at 11:35 a.m. Recess began after lunch at 12:25 p.m. Recess was over at 1:10 p.m. How long was Recess?
45 Minutes
7 x 2 = ?
14
Mr. Lara wants to buy a phone charger worth $42, but he only has a $50 bill How much change will he receive?
$8
345,134 + 56,134 = ?
401,268
MENTAL MATH
50 x 2 =
100
42 divided into 6 groups
7
The answer to a subtraction problem
difference
What is PEMDAS and when do you use it?
Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction.
You use this when you have multiple operations in one equation. It tells you the correct order of operations.
60 divided by 3=
20
Mental Math
60 - 30 =
30
MENTAL MATH
98 + 499 = ?
597
5676 x 5 = ?
28,380
MENTAL MATH
40 divided into 5 groups
8
quotient
What formula do you use to find the area of a triangle?
1/2 x b x h
33
27
54,642-318
54,324
MENTAL MATH
30 + x = 951
x = 921
4 x 7 =
28
MENTAL MATH
45 divided into 9 groups
5
The answer to a multiplication problem
product
What formula do you use to find the area of a circle?
A = (3.14) r2
A = ∏r2
Solve for n:
(3n) +3 = 15
4
562-191
371
MENTAL MATH
155 + 245 = ?
400
345 x 5 =
1725
MENTAL MATH
100 divided into 5 groups
20
Type of number with a numerator and denominator
Fraction
Find the mean: 14, 15, 16, 20, 24
The mean is 17.8