Question

Work out $1 + 7 + 2$ in two different ways by copying and completing the working below. a) $(1 + 7) + 2 = \boxed{} + 2$ $= \boxed{}$ b) $1 + (7 + 2) = 1 + \boxed{}$ $= \boxed{}$

          Work out $1 + 7 + 2$ in two different ways by copying and completing the working below.
a) $(1 + 7) + 2 = \boxed{} + 2$
$= \boxed{}$ 
b) $1 + (7 + 2) = 1 + \boxed{}$ 
$= \boxed{}$

Work out 1 + 7 + 2 in two different ways by copying and completing the working below.
a) (1 + 7) + 2 = + 2
=
b) 1 + (7 + 2) = 1 +
=

Added by Melissa R.

Elementary and Intermediate Algebra

Alan S. Tussy, R. David Gustafson 5th Edition

Instant Answer

Solved by Expert Dj Tan

Step 1

To solve this, we start by adding 1 and 7, which gives us 8. Then, we add 8 and 2, which gives us 10. So, (1+7)+2 = 10. Now, let's look at the second expression 1+(7+2). To solve this, we start by adding 7 and 2, which gives us 9. Then, we add 1 and 9, which Show more…

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