Addition
x + 4 = 25
x = 21
x - 2 = 6
x = 8
9x = 27
x = 3
y/6 = 2
y = 12
m + 2.4 = 3.7
m = 1.3
a + 13 = 30
a = 17
d - 7 = 9
d = 16
12x = 72
x = 6
x/4 = 8
x = 32
x - 6.8 = 10.8
x = 17.6
n + 658 = 1023
x = 365
k - 83 =121
k = 204
6e = 612
e = 102
x/6 = 6
x = 36
v + 9.45 = 54.7
v = 45.25
Keshav has $250 in his account. This is $75 more than his brother Nalin has in his account. Write and solve an addition equation to find the amount of money in Nalin’s account.
n + 75 = 250
$175
For two days in a row, Winston rescued tadpoles from a puddle. He rescued 54 on Friday. This is 17 less than the number he rescued on Saturday. Write and solve a subtraction equation to find how many tadpoles he rescued on Saturday.
t - 17 = 54
71 tadpoles
A grocery store is selling 6 cans of cat food for $18. Write and solve a multiplication equation to find the cost of a can of cat food.
6c = 18
$18
The width of a swimming pool is one third of its length. The width of the pool is 15 feet. What is the length of the pool?
45 feet
c/0.29 = 5.5
c = 1.595
A stunt airplane is flying at 150 feet. It ascends to 325 feet. Write and solve an equation to find the change in altitude of the airplane.
150 + a = 325
175 feet
During a test flight, Jeri’s rocket reached a height of 18 yards. This was 7 yards less than the height of Devon’s rocket. Write and solve a subtraction equation to find the height of Devon’s rocket.
d - 7 = 18
25 yards
Earline has put $250 into her savings account. To do this, she made 10 deposits of the same amount. Write and solve a multiplication equation to find the amount of each deposit.
10d = 250
$250
LAWN MOWING Ali was paid $75 for mowing a neighbor’s yard. This is one fourth of the amount of money she earned all summer. How much did Ali earn all summer?
e/4 = 75
$300
9c = 86.4
c = 9.6