Grade 6 · Set C · Side 1 of 2
Which number makes it true?
C
Start Finish
Goal: 15 min for both sides
Score/ 20
Remember: Put the number in. If both sides match, or the sign is true, it works.
1k + 7 = 9 + 7 for k in 5, 8, 9k = 5k = 8k = 9none of them
working 2x ÷ 2 + 2 = 5 with x = 6YesNo
working 3n + 6 = 5 + 5 for n in 0, 4, 6n = 0n = 4n = 6none of them
working 42n < 4 for n in 0, 1, 2, 3, 4 working
58 + t = 16 for t in 5, 8, 9t = 5t = 8t = 9none of them
working 6n − 3 > 7 for n in 10, 11, 12, 13, 14 working
7x + 6 = 6 + 7 for x in 3, 6, 7x = 3x = 6x = 7none of them
working 8k ÷ 2 + 5 = 8 with k = 6YesNo
working 98t < 64 for t in 6, 7, 8, 9, 10 working
103x + 4 = 25 for x in 4, 7, 21x = 4x = 7x = 21none of them
working
Grade 6 · Set C · Side 2 of 2
Which number makes it true?
C
Start Finish
Goal: 15 min for both sides
Score/ 20
11x + 2 > 6 for x in 1, 2, 3, 4, 5 working
12t − 7 > 2 for t in 8, 9, 10, 11, 12 working
13y + 4 = 7 + 2 with y = 3YesNo
working 148t > 16 for t in 0, 2, 4t = 0t = 2t = 4none of them
working 154(y + 3) = 36 for y in 3, 4, 9y = 3y = 4y = 9none of them
working 167 + n = 9 with n = 4YesNo
working 17x ÷ 4 < 5 for x in 16, 20, 24, 28, 32 working
183 < t for t in 2, 3, 4, 5, 6 working
19n ÷ 3 + 8 = 10 with n = 6YesNo
working 20x + 4 > 15 with x = 12YesNo
working Answer key · Grade 6 · Set C
Which number makes it true?
1k = 9
2Yes
3n = 4
42
5t = 8
64
7x = 7
8Yes
92
10x = 7
111
123
13No
14t = 4
15none of them
16No
171
183
19Yes
20Yes
Mark each answer, count the right ones and write the score on the sheet. Beat your own time next time.