Let's solve each equation step by step using the
order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right). We'll also handle
integers correctly (positive and negative numbers).
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Left Column
1.
-4 × -5 × -2 = ?
Multiply step by step:
-4 × -5 = 20
20 × -2 =
-40
✔ Answer: -40
2.
4 × 5 ÷ 10 = ?
Left to right:
4 × 5 = 20
20 ÷ 10 =
2
✔ Answer: 2
3.
15 + 5 - 10 = ?
Left to right:
15 + 5 = 20
20 - 10 =
10
✔ Answer: 10
4.
25 + 5 × 5 = ?
Multiplication first:
5 × 5 = 25
Then: 25 + 25 =
50
✔ Answer: 50
5.
100 ÷ 4 ÷ 5 = ?
Left to right:
100 ÷ 4 = 25
25 ÷ 5 =
5
✔ Answer: 5
6.
-5 - -5 + 2 = ?
Subtracting a negative is adding:
-5 - (-5) = -5 + 5 = 0
Then: 0 + 2 =
2
✔ Answer: 2
7.
24 + 12 ÷ 8 = ?
Division first:
12 ÷ 8 = 1.5
Then: 24 + 1.5 =
25.5
✔ Answer: 25.5 (or $ \frac{51}{2} $)
8.
3 × -4 × 9 = ?
Multiply step by step:
3 × -4 = -12
-12 × 9 =
-108
✔ Answer: -108
9.
8 ÷ 4 × 2 = ?
Left to right:
8 ÷ 4 = 2
2 × 2 =
4
✔ Answer: 4
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Right Column
1.
-27 ÷ -3 + 3 = ?
Division first:
-27 ÷ -3 = 9
Then: 9 + 3 =
12
✔ Answer: 12
2.
-55 ÷ 5 × -2 = ?
Left to right:
-55 ÷ 5 = -11
-11 × -2 =
22
✔ Answer: 22
3.
49 ÷ 7 × -2 = ?
Left to right:
49 ÷ 7 = 7
7 × -2 =
-14
✔ Answer: -14
4.
-9 ÷ -3 + -3 = ?
Division first:
-9 ÷ -3 = 3
Then: 3 + (-3) =
0
✔ Answer: 0
5.
-5 × 8 + 4 = ?
Multiplication first:
-5 × 8 = -40
Then: -40 + 4 =
-36
✔ Answer: -36
6.
-22 × 2 + 5 = ?
Multiplication first:
-22 × 2 = -44
Then: -44 + 5 =
-39
✔ Answer: -39
7.
-11 × -2 ÷ -2 = ?
Left to right:
-11 × -2 = 22
22 ÷ -2 =
-11
✔ Answer: -11
8.
5 × 7 - -2 = ?
First: 5 × 7 = 35
Then: 35 - (-2) = 35 + 2 =
37
✔ Answer: 37
9.
18 + 3 × -2 = ?
Multiplication first:
3 × -2 = -6
Then: 18 + (-6) =
12
✔ Answer: 12
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✔ Final Answers:
####
Left Column:
1. -40
2. 2
3. 10
4. 50
5. 5
6. 2
7. 25.5
8. -108
9. 4
####
Right Column:
1. 12
2. 22
3. -14
4. 0
5. -36
6. -39
7. -11
8. 37
9. 12
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Let me know if you'd like this formatted as a printable answer key!
Parent Tip: Review the logic above to help your child master the concept of integer operation worksheet.
