CPM Homework Help : GC Problem 1-4

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1-4.

Calculate the values of the expressions below. Show all steps in your process. The answers are provided for you to check your result. If you miss two or more of these and cannot find your errors, be sure to seek help from your team or teacher.

$2·(3(5+2)-1)$
Step 1(a):
$2\cdot\left(3\left(7\right)-1\right)$
Step 2(a):
$2\cdot(21-1)$
Step 3(a):
$2\cdot20$
Answer (a):
$40$

$6-2(4+5)+6$
Step 1(b):
$6-2\left(9\right)+6$
Step 2(b):
$6-18+6$
Answer (b):
$-6$

$3·8\div2^2+1$
Step 1(c):
$3\cdot8\div4+1$
Step 2(c):
$24\div4+1$
Step 3(c):
$6+1$
Answer (c):
$7$

$5-2·3+6(3^2+1)$
Step 1(d):
$5-2\cdot3+6\left(9+1\right)$
Step 2(d):
$5-2\cdot3+6\left(10\right)$
Step 3(d):
$5-6+60$
Answer (d):
$59$