Exercises: Grouping Symbols in Numerical Expressions
Work through each section in order. Show the intermediate step (the expression after each group is
replaced by its value) before writing your final answer.
Recall / Warm-Up
Compute 8 x 6.
Compute 42 - 17.
Which equation shows the associative property of addition?
(2 + 3) + 4 = 2 + (3 + 4)
2 + 3 = 3 + 2
2 x 3 = 3 x 2
2 + 0 = 2
Fluency Practice
What do the parentheses tell you to do first in (6 + 4) x 3?
Add 6 and 4 first
Multiply 4 and 3 first
Add 4 and 3 first
It does not matter -- compute left to right
Compute (6 + 4) x 3.
Compute 20 - (3 x 4).
Compute (18 - 6) / 4.
Compute 3 + (20 / 4).
(9 - 5) x 3 = ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ x 3 = ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
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