Addition Equations
x + 7 = 10
x = 3
r - 14 = 21
r = 35
5d = 20
d = 4
g / 2 = 20
g = 40
Enrique and Levi together have 386 trading cards. If Enrique has 221 trading cards, write an addition equation to determine how many cards Levi has.
c + 221 = 386
10 + z = 52
z = 42
f - 5 = 75
f = 80
6g = 18
g = 3
f / 4 = 12
f = 48
Alejandra spent her birthday money on a video game that cost $24, a controller for $13, and a memory card for $16. The total tax was $3. Write a subtraction equation to find out how much money Alejandra gave the cashier if she received $4 in change.
x - 56 = 4
c + 19 = 71
c = 52
37 = h - 12
h = 49
27 = 3k
k = 9
5 = m / 3
m = 15
The total time to burn a CD is 18 minutes. Last weekend, Demetri spent 90 minutes burning CDs. Write a multiplication equation to represent the number of CDs Demetri burned last weekend.
18x = 90
18 = j + 12
j = 6
84 - d = 31
d = 53
95 = 5p
p = 19
4 = y / 4
y = 16
Chen is buying a ham. He wants to divide it into 6.5-ounce servings for 12 people. Write a division equation to determine what size ham Chen should buy.
h / 6.5 = 12
584 = n + 167
n = 417
Pete is 15 years old. This is 6 years younger than his sister Victoria. Write and solve a subtraction equation to find Victoria's age.
a - 6 = 15
21 years old
A jewelry store is selling a set of 4 pairs of gemstone earrings for $58. Neva and three of her friends want to buy the set so each could have one pair of earrings. Write and solve a multiplication equation to find out how much each person should pay.
4e = 58
e = $14.50
Sophia is buying party favors. She has a budget of $2.75 per person for 6 people. Write and solve a division equation to determine how much can Sophia spend on party favors.
f / 2.75 = 6
$16.50
Caroline baked 3 dozen oatmeal raisin cookies for the bake sale at school. This is one-fourth the number of dozens of cookies she baked in all. Write a division equation to represent how many dozens of cookies she baked in all.
x / 4 = 3