7th grade Chapter 1 review

Solve: (2×10)+4

• 20

• 26

• 7

• 24

Find and explain the error.    
 5 - 3 + 2
     5 - 5
        0

• There is no error.
• Addition was done first and you should have subtracted first
• There is a subtraction error

7[12 − (6 − 2) ÷ 4]

• 7
• 77
• 14
• 0

3 + 4 =

-12 + -11

• 23
• -23
• -1
• 1

-6 x (-2)

• 12
• -12
• -8
• 8

-3 - (-4)

• 1
• -1
• -7
• 7

-24 ÷ 6

• 4
• -4
• 6
• 6

-12 x 7

• -96
• -84
• 72
• 108

-34 + 50

• 10
• 16
• 20
• -15