Say What?
Solve for n:
n+5=12
n=7
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
Solve for p:
p-13=11
p=24
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 an INVERSE OPERATION?
The "opposite" operation.
Solve for x:
x/3=20
60
Mental Math
60 - 20 =
40
MENTAL MATH
98 + 499 = ?
597
5676 x 5 = ?
28,380
MENTAL MATH
40 divided into 5 groups
8
quotient
What is the "n" called in this equation?
Variable
What is 33 in Standard Form?
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 is x?
9x=45
x=5
Solve for n:
7n=56
n=8
562-191
371
MENTAL MATH
155 + 245 = ?
400
345 x 5 =
1725
MENTAL MATH
100 divided into 5 groups
20
Which of the following is an equation?
A) 11 + m
B) 17 - m = 10
C) Both
B
What is y?
y/3=24
y=8