Add and subtract expressions with letters

Grade 7 Math Worksheet - Building Confidence

NameDate

Circle the best answer, or write your answer on the line.

  1. Not to scale. 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?

  2. Jun sharpens a pencil down to a stub for this puzzle. How would Jun write (3x + 4) + (2x + 7) with as few terms as possible?

  3. Kira copies a puzzle onto paper, then doodles a cat in the corner. How would Kira write (4x + 1) + (3x + 8) with as few terms as possible?

  4. 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?

  5. Noah digs a puzzle card out of a backpack. How would Noah write (9x + 8) − (4x + 5) with as few terms as possible?

  6. Ren finds a puzzle hiding on the classroom calendar. Which expression is equal to (4x + 3) + (2x + 6)?

    • 6x + 9
    • 6x + 3
    • 9x + 6
    • 15x
  7. A friendly robot hands Tala a puzzle with a beep. Which expression is equal to (5x + 2) + (3x + 4)?

    • 10x + 4
    • 8x + 6
    • 8x + 2
    • 14x
  8. Zee starts the timer, and it beeps like a chicken. Which expression is equal to (2x + 7) + (6x + 1)?

    • 15x + 1
    • 8x + 8
    • 8x + 7
    • 16x
  9. Ari's bags each hold x apples. Crate A has 3 bags and 2 loose apples, crate B has 2 bags and 5 loose. How many apples in all, with as few terms as possible?

  10. Esme's bags each hold x oranges. Crate A has 5 bags and 2 loose oranges, crate B has 2 bags and 4 loose. How many oranges in all, with as few terms as possible?

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Add and subtract expressions with letters

Answer Key - Grade 7 Math Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.

  1. Not to scale. 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?

    6x + 8
  2. Jun sharpens a pencil down to a stub for this puzzle. How would Jun write (3x + 4) + (2x + 7) with as few terms as possible?

    5x + 11
  3. Kira copies a puzzle onto paper, then doodles a cat in the corner. How would Kira write (4x + 1) + (3x + 8) with as few terms as possible?

    7x + 9
  4. 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?

    4x + 5
  5. Noah digs a puzzle card out of a backpack. How would Noah write (9x + 8) − (4x + 5) with as few terms as possible?

    5x + 3
  6. Ren finds a puzzle hiding on the classroom calendar. Which expression is equal to (4x + 3) + (2x + 6)?

    • 6x + 9
    • 6x + 3
    • 9x + 6
    • 15x
  7. A friendly robot hands Tala a puzzle with a beep. Which expression is equal to (5x + 2) + (3x + 4)?

    • 10x + 4
    • 8x + 6
    • 8x + 2
    • 14x
  8. Zee starts the timer, and it beeps like a chicken. Which expression is equal to (2x + 7) + (6x + 1)?

    • 15x + 1
    • 8x + 8
    • 8x + 7
    • 16x
  9. Ari's bags each hold x apples. Crate A has 3 bags and 2 loose apples, crate B has 2 bags and 5 loose. How many apples in all, with as few terms as possible?

    5x + 7
  10. Esme's bags each hold x oranges. Crate A has 5 bags and 2 loose oranges, crate B has 2 bags and 4 loose. How many oranges in all, with as few terms as possible?

    7x + 6