Subtraction
674 - m = 467
207
These equations are equal to each other. True or False?
864 + 25 = 468 + 421
Since both sides equal 889, the equation is True.
h = 12 x 8
96
An equation with an unknown value is given.
72 ÷ k = 9
Determine the unknown value.
k = 8
Solve for x. Are both sides equal to each other?
745+58=803+x
x = 0. This equation is True because both sides equal 803.
100 - n = 26
74
90 + n = 223
133
42 = c x 6
7
Sofia has 72 marbles, and she wants to put them into 8 equal groups. Create an equation with an unknown variable g that shows how many marbles are in each group. Then, solve for g.
72÷8=g
72÷8=g
g=9
102−36− n = 121÷11
Find the missing value.
n = 55
g = 999 - 125
874
49 + 67 = a
116
Carlos bought 6 packs of trading cards, and each pack has 9 cards. Create an equation with an unknown variable c that shows the total number of cards Carlos has.
c=6×9
Which equation has a value of t that is less than 10?
Equation 2:
81÷t=9
Leila has 96 marbles, which is 8 times as many marbles as her friend Carlos. How many marbles does Carlos have?
12
Justin won 18 stuffed animals at the fair. He gave 5 of his stuffed animals away to his friends. Create an equation with an unknown variable s that shows how many stuffed animals Justin has now.
18 - 5 = s
Samantha collected 128 stamps in her collection. Her aunt gave her 57 more stamps. Create an equation with an unknown variable s that shows how many stamps Samantha has now.
s = 128 + 57
These equations are equal to each other. True or False?
11×6=9×8
False. The first equation equals 66 and the second equals 72.
4 = k ÷ 7
What is the value of k?
k = 28
An equation is shown.
24÷8=24−8−8−8
Is the equation true?
No. The left side equals 3. The right side equals 0.
Mario wants to steal 25 dollars from his friend Tiana, who has 51 dollars. Create an equation with an unknown variable d that can show how much money Tiana will end up with.
51 - 25 = d
These equations equal to each other. True or False?
732+59=418+374
False. The first equation equals 791 and the second equals 792.
The average height of a giraffe is 18 feet. The average height of a llama is 6 feet.
How many times taller is the average giraffe than the average llama?
3 times. 18=6x3
Which equation has a value of nnn that is less than 8?
Equation 1: n=6
Is the equation true or false?
12x4=8×3