Use Subtraction Equations to Solve Problems

Brianna’s gymnastics club collected 83 toys for a toy drive. This is 26 fewer than the number of toys collected by Latoya’s dance team. Write a subtraction equation that could be used to find t, the number of toys collected by Latoya’s dance team.

• t - 26 = 83

• t + 26 = 83

• 83 - 26 = t

• t = 83 - 26

The Tigers soccer team scored 38 goals last season. This is 19 fewer than the number of goals scored by the Cubs soccer team. Which subtraction equation could be used to find g, the number of goals scored by the Cubs soccer team last season?

• g - 19 = 38

• 38 + 19 = g

• 38 - g = 19

• 19 - 38 = g

Ruby is 7 years old. She is the youngest of her siblings and 12 years younger than her oldest sibling. Here is a subtraction equation that could be used to find a, the age of Ruby’s oldest sibling.

• a - 12 = 7

• a + 12 = 7

• 7 - a = 12

• 12 - a = 7

Water in an ice tray was cooled to 32 degrees Fahrenheit. This is 43 degrees less than its starting temperature. Which of the following subtraction equations represents this situation?

• w - 43 = 32

• 32 - 43 = w

• w + 43 = 32

• 43 - w = 32

Solve the equation: -17 = b - 8. Check your solution.

• b = -9

• b = 9

• b = -25

• b = 25

Solve the equation: 8 = x - 5. Check your solution.

• x = 13

• x = 8

• x = -13

• x = 3

Solve for i: i - 6 = 18

• i = 12

• i = 24

• i = -12

• i = 30

Solve for d: d - 3 = -11

• d = -8

• d = -14

• d = 14

• d = 8

Solve for f: -15 = f - 3.

• f = -12

• f = -18

• f = 3

• f = 12

Solve for q: -4 = q - 6.

• q = 2

• q = -2

• q = 10

• q = -10