Add and subtract expressions with letters
Grade 7 Math Worksheet - Building Confidence
Circle the best answer, or write your answer on the line.
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Ari finds a riddle card tucked in a lunchbox. In (2x + 3) + (4x + 5), the x pieces join to make 6x. What is the whole sum with as few terms as possible?
Bo opens an envelope that holds one tiny puzzle. In (3x + 1) + (2x + 6), the x pieces join to make 5x. What is the whole sum with as few terms as possible?
Esme puts on glasses to read very tiny print. In (5x + 2) + (x + 4), the x pieces join to make 6x. What is the whole sum with as few terms as possible?
Milo has one minute on the clock, and it ticks loudly. How would Milo write (7x + 9) − (3x + 4) with as few terms as possible?
Pia writes the puzzle in blue pen, very boldly. How would Pia write (8x + 6) − (x + 2) with as few terms as possible?
Ren finds a puzzle hiding on the classroom calendar. Which expression is equal to (4x + 3) + (2x + 6)?
- 9x + 6
- 6x + 9
- 6x + 3
- 15x
Zee starts the timer, and it beeps like a chicken. Which expression is equal to (2x + 7) + (6x + 1)?
- 16x
- 8x + 8
- 8x + 7
- 15x + 1
Bo's bags each hold x pears. Crate A has 4 bags and 3 loose pears, crate B has 3 bags and 2 loose. How many pears in all, with as few terms as possible?
A yarn is 6x + 9 cm long. Jun cuts off 2x + 4 cm for a bracelet. How long is the yarn left, with as few terms as possible?
A yarn is 8x + 7 cm long. Kira cuts off 5x + 2 cm for a bracelet. How long is the yarn left, with as few terms as possible?