37
Solve using order of operations. SHOW ALL WORK, on lined paper.
⋅
−
2
3
−
÷
+
4
(7 8) 3
2(81 3 ) 3
16)
17)
+ ⋅ + −
+
−
4 2 3 4 3
9 (81 4)
+
+
0
18)
19)
5 6
5
1
1
+
−
÷ −
+
−
÷
20) 6 12(16 10)
21)
2
4
[10 (2 4 ) 7]
8
•
−
+
14
4
8
4
(
)
22)
23) 8² • 2 +3 + 10 ÷ 5 – 4
−
+
+
5
4
3
4
2
2
2
Use <, =, > to make the sentence true
24)
10² - (2 • 5) + 150 ÷ 5 – 4
_________ 7 - (2 • 3) + 10 ÷ 5 – 4
25) Evaluate the problem. Identify in which line an error is made.
40 ÷ (-9 + 8) + 21 ●3
Given
40 ÷ (-1) + 21 ●3
line 1
40 ÷ 20 ● 3
line 2
2 ●3
line 3
6
answer