Guess, Check, Revise
Identify the solution of each equation from the list given using the guess, check, and revise strategy.
n + 23 = 34; 10, 11, 12
n = 11
Solve the following equation using inverse operations. Show your work.
s + 6 = 13
s = 7
Solve the following equation using inverse operations. Show your work.
14 = n - 18
n = 32
Solve the following equation using inverse operations. Show your work.
9y = 81
y = 9
Solve the following equation using inverse operations. Show your work.
5 = w ÷ 5
w = 25
Identify the solution of the equation from the list given using the guess, check, and revise strategy.
a - 7 = 10; 17, 18, 19
a = 17
Solve the following equation using inverse operations. Show your work.
49 = n + 26
n = 23
Solve the following equation using inverse operations. Show your work.
y - 52 = 16
y = 68
Solve the following equation using inverse operations. Show your work.
100 = 20x
x = 5
Solve the following equation using inverse operations. Show your work.
15 = s ÷ 6
s = 90
Identify the solution of the equation from the list given using the guess, check, and revise strategy.
9k = 63; 5, 6, 7
k = 7
Solve the following equation using inverse operations. Show your work.
220 = y + 94
y = 126
Solve the following equation using inverse operations. Show your work.
s - 183 = 347
s = 530
Solve the following equation using inverse operations. Show your work.
9z = 108
z = 12
Solve the following equation using inverse operations. Show your work.
n ÷ 12 = 20
n = 240
Identify the solution of the equation from the list given using the guess, check, and revise strategy.
49 ÷ s = 7; 6, 7, 8
s = 7
Solve the following equation using inverse operations. Show your work.
w +7.4 = 21.8w = 14.4
Solve the following equation using inverse operations. Show your work.
19.6 = j - 10.3
j = 29.9
Solve the following equation using inverse operations. Show your work.
45.5 = 6.5n
n = 7
Solve the following equation using inverse operations. Show your work.
y ÷ 4 = 8.2
y = 32.8
Identify the solution of the equation from the list given using the guess, check, and revise strategy.
4.5 - y = 1.5; 2, 3, 4
y = 3
A board that measures 19.5 meters in length is cut into two pieces. One piece measures 7.2 meters. Write and solve an equation to find the length of the other piece.
7.2 + n = 19.5
n = 12.3 meters
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 and solve a subtraction equation to find how much money Alejandra gave the cashier if she received $4 in change.
n - 56 = 4
n = 60
Four friends decided to split the cost of season concert tickets equally. Each person paid $35. Write and solve an equation to find the total cost of the season concert tickets.
4n = 35
n = $8.75
Chen is buying a ham. He wants to divide it into 6.5 ounce servings for 12 people. Write and solve a division equation to find what size ham Chen should buy.
n ÷ 12 = 6.5 OR n ÷ 6.5 = 12
n = 78 ounce ham