Equal expressions: 6th grade math
Equivalent expressions (distributive property, like terms). A free 6th grade lesson plan, a question set with answers and a printable sheet with its key. Copy it and make it yours.
Lesson plan
Goal
- Students can do this: equivalent expressions (distributive property, like terms).
Teach (10 min)
- Divide each number by the GCF to find what goes inside the parentheses.
- 56 − 24: the GCF is 8, and 56 ÷ 8 = 7 and 24 ÷ 8 = 3. So 56 − 24 = 8(7 − 3).
- Work one example on the board while students say each step aloud, then do one together.
Practise (15 min)
- Students work the printable sheet in pairs, then alone.
- Or practise it as a game with no sign-up: https://peabody.kids/math/base10.factorSum?lesson=6-base10-factorsum-2&at=6
Exit ticket (5 min)
- Three questions on a slip:
- 1. Which expression is equal to 15 + 25?
- 2. Write 154 + 56 as a number times a sum: ?(11 + 4). What number goes where the ? is?
- 3. Write 60 + 84 as a number times a sum: ?(5 + 7). What number goes where the ? is?
Question set
10 questions that read in words, easiest first. Questions that need a picture are on the printable sheet below.
- Which expression is equal to 15 + 25?
- Write 154 + 56 as a number times a sum: ?(11 + 4). What number goes where the ? is?
- Write 60 + 84 as a number times a sum: ?(5 + 7). What number goes where the ? is?
- Which expression is equal to 55 + 35?
- The GCF of 84 and 35 is 7, so 84 − 35 = 7(□). What number goes in the box, in the parentheses?
- Which expression is equal to 77 + 28?
- Which expression is equal to 33 + 77?
- Which expression is equal to 45 − 18?
- The GCF of 104 and 91 is 13, so 104 − 91 = 13(□). What number goes in the box, in the parentheses?
- Which expression is equal to 119 + 153?
Answers
- 5(3 + 5)
- 14
- 12
- 5(11 + 7)
- 7
- 7(11 + 4)
- 11(3 + 7)
- 9(5 − 2)
- 1
- 17(7 + 9)
Printable sheet
Name: ____________________ Date: ____________
Equal expressions (6th grade)
- 33 + 24 = 3(□ + 8). What number goes in the box?
- Which expression is equal to 72 − 12?
- 132 + 96 = 12(□ + 8). What number goes in the box?
- 33 + 36 = 3(□ + 12). What number goes in the box?
- Which expression is equal to 40 + 35?
- The GCF of 36 and 198 is 18, so 36 + 198 = 18(□). What number goes in the box, in the parentheses?
- Which expression is equal to 84 − 70?
- Which expression is equal to 15 + 30?
- Which expression is equal to 54 − 18?
- 55 + 88 = 11(□ + 8). What number goes in the box?
- The GCF of 33 and 121 is 11, so 33 + 121 = 11(□). What number goes in the box, in the parentheses?
- Which expression is equal to 180 − 18?
Key
- 11
- 12(6 − 1)
- 11
- 11
- 5(8 + 7)
- 13
- 14(6 − 5)
- 15(1 + 2)
- 18(3 − 1)
- 5
- 14
- 18(10 − 1)
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