Equal Sign & True/False Equations — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Which equation is TRUE?
A) 5 + 3 = 4 + 4
B) 5 + 3 = 4 + 5
C) 5 + 3 = 3 + 3
D) 5 + 3 = 6 + 3
5 + 3 is 8 and 4 + 4 is 8, so the first is true.
2. Which equation is TRUE?
A) 2 + 6 = 3 + 4
B) 2 + 6 = 5 + 3
C) 2 + 6 = 4 + 4
D) 2 + 6 = 7 + 2
2 + 6 is 8 and 4 + 4 is 8, so that option is true.
3. Which equation is FALSE?
A) 1 + 5 = 3 + 3
B) 1 + 5 = 2 + 4
C) 1 + 5 = 4 + 2
D) 1 + 5 = 5 + 3
5 + 3 is 8, not 6, so that equation is false.
4. Which equation is TRUE?
A) 6 + 2 = 3 + 6
B) 6 + 2 = 5 + 3
C) 6 + 2 = 4 + 3
D) 6 + 2 = 2 + 5
6 + 2 is 8 and 5 + 3 is 8, so that option is true.
Part B: Fill in the Blank
Write the correct answer on each line.
1. If 3 + 5 = 6 + 2, then the blank = 6.
Both sides equal 8 when the blank is 6.
2. If 4 + 4 = 5 + 3, then the blank = 3.
Both sides equal 8 when the blank is 3.
3. If 2 + 7 = 3 + 6, then the blank = 3.
Both sides equal 9 when the blank is 3.
4. If 6 + 3 = 4 + 5, then the blank = 5.
Both sides equal 9 when the blank is 5.
5. If 1 + 9 = 5 + 5, then the blank = 5.
Both sides equal 10 when the blank is 5.