Let’s go through each problem one by one, following the
order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right).
We’ll solve all 30 problems carefully.
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1) 10 - 5 × 2
→ Multiply first: 5 × 2 = 10
→ Then subtract: 10 - 10 =
0
2) 20 ÷ 2 + 3
→ Divide first: 20 ÷ 2 = 10
→ Then add: 10 + 3 =
13
3) 8 + 2 × 7
→ Multiply first: 2 × 7 = 14
→ Then add: 8 + 14 =
22
4) 5 - 6 × 0
→ Multiply first: 6 × 0 = 0
→ Then subtract: 5 - 0 =
5
5) 3 × 9 - 7
→ Multiply first: 3 × 9 = 27
→ Then subtract: 27 - 7 =
20
6) 5 × 3 - 7
→ Multiply first: 5 × 3 = 15
→ Then subtract: 15 - 7 =
8
7) 6 - 2 × 5
→ Multiply first: 2 × 5 = 10
→ Then subtract: 6 - 10 =
-4
8) 24 ÷ 6 - 5
→ Divide first: 24 ÷ 6 = 4
→ Then subtract: 4 - 5 =
-1
9) 2 × 3 × 5
→ Multiply left to right: 2 × 3 = 6; 6 × 5 =
30
10) 12 ÷ 4 ÷ 3
→ Divide left to right: 12 ÷ 4 = 3; 3 ÷ 3 =
1
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11) 3 + 9 × 4
→ Multiply first: 9 × 4 = 36
→ Then add: 3 + 36 =
39
12) 12 - 5 × 3
→ Multiply first: 5 × 3 = 15
→ Then subtract: 12 - 15 =
-3
13) 9 + 10 ÷ 2
→ Divide first: 10 ÷ 2 = 5
→ Then add: 9 + 5 =
14
14) 5 × 3 ÷ 2
→ Multiply and divide left to right: 5 × 3 = 15; 15 ÷ 2 =
7.5
15) 14 - 9 × 3
→ Multiply first: 9 × 3 = 27
→ Then subtract: 14 - 27 =
-13
16) 6 + 7 × 5
→ Multiply first: 7 × 5 = 35
→ Then add: 6 + 35 =
41
17) 6 × 3 - 9
→ Multiply first: 6 × 3 = 18
→ Then subtract: 18 - 9 =
9
18) 3 × (4 + 2)
→ Parentheses first: 4 + 2 = 6
→ Then multiply: 3 × 6 =
18
19) (9 - 4) × 3
→ Parentheses first: 9 - 4 = 5
→ Then multiply: 5 × 3 =
15
20) 4 × 9 - 5
→ Multiply first: 4 × 9 = 36
→ Then subtract: 36 - 5 =
31
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21) 7 - 36 ÷ 3
→ Divide first: 36 ÷ 3 = 12
→ Then subtract: 7 - 12 =
-5
22) 14 + 8 ÷ 2
→ Divide first: 8 ÷ 2 = 4
→ Then add: 14 + 4 =
18
23) 7 × (9 - 3)
→ Parentheses first: 9 - 3 = 6
→ Then multiply: 7 × 6 =
42
24) 12 ÷ 4 × 6
→ Divide and multiply left to right: 12 ÷ 4 = 3; 3 × 6 =
18
25) (8 - 3) × 5
→ Parentheses first: 8 - 3 = 5
→ Then multiply: 5 × 5 =
25
26) 4 × (5 + 8)
→ Parentheses first: 5 + 8 = 13
→ Then multiply: 4 × 13 =
52
27) 25 - 3 × 9
→ Multiply first: 3 × 9 = 27
→ Then subtract: 25 - 27 =
-2
28) 14 × 2 + 7
→ Multiply first: 14 × 2 = 28
→ Then add: 28 + 7 =
35
29) 48 ÷ (2 × 4)
→ Parentheses first: 2 × 4 = 8
→ Then divide: 48 ÷ 8 =
6
30) 18 - 6 × 5
→ Multiply first: 6 × 5 = 30
→ Then subtract: 18 - 30 =
-12
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All answers have been double-checked using order of operations rules.
Final Answer:
0, 13, 22, 5, 20, 8, -4, -1, 30, 1, 39, -3, 14, 7.5, -13, 41, 9, 18, 15, 31, -5, 18, 42, 18, 25, 52, -2, 35, 6, -12
Parent Tip: Review the logic above to help your child master the concept of pemdas worksheet and answers.
