Arithmetic Expressions — Class 7 Mathematics NCERT Solutions (Free)
Free step-by-step NCERT solutions for Class 7 Mathematics chapter "Arithmetic Expressions" — 8 important questions with detailed answers for CBSE board exam preparation.
TL;DR: Free step-by-step NCERT solutions for Class 7 Mathematics chapter "Arithmetic Expressions" — 8 important questions with detailed answers for CBSE boar…
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Key Questions Covered:
- Simplify: 12 + 8 ÷ 4 - 2
- Simplify: 36 ÷ 6 × 3 + 2
- Evaluate: 2 × (15 - 5) ÷ 2
- Simplify: 100 - 10 × 5 + 8
- Find the value of: 8 + [5 × (6 - 2)]
- Simplify: 24 ÷ (12 - 4) × 2
- + 2 more questions in the full chapter
Solutions Summary:
| Question | Status |
|---|---|
| Simplify: 12 + 8 ÷ 4 - 2 | ✓ Solved |
| Simplify: 36 ÷ 6 × 3 + 2 | ✓ Solved |
| Evaluate: 2 × (15 - 5) ÷ 2 | ✓ Solved |
| Simplify: 100 - 10 × 5 + 8 | ✓ Solved |
| Find the value of: 8 + [5 × (6 - 2)] | ✓ Solved |
| Simplify: 24 ÷ (12 - 4) × 2 | ✓ Solved |
Showing 6 of 8 questions
Q1: Simplify: 12 + 8 ÷ 4 - 2
Step 1: Apply BODMAS (Brackets, Orders, Division, Multiplication, Addition, Subtraction)
Step 2: First, perform division:
8 ÷ 4 = 2
Expression becomes: 12 + 2 - 2
Step 3: Perform addition and subtraction from left to right:
12 + 2 = 14
14 - 2 = 12
Answer: 12
Q2: Simplify: 36 ÷ 6 × 3 + 2
Step 1: Apply BODMAS
Step 2: Perform division and multiplication from left to right:
36 ÷ 6 = 6
6 × 3 = 18
Expression becomes: 18 + 2
Step 3: Perform addition:
18 + 2 = 20
Answer: 20
Q3: Evaluate: 2 × (15 - 5) ÷ 2
Step 1: Apply BODMAS - evaluate brackets first
(15 - 5) = 10
Step 2: Expression becomes: 2 × 10 ÷ 2
Step 3: Perform multiplication and division from left to right:
2 × 10 = 20
20 ÷ 2 = 10
Answer: 10
Q4: Simplify: 100 - 10 × 5 + 8
Step 1: Apply BODMAS
Step 2: Perform multiplication first:
10 × 5 = 50
Expression becomes: 100 - 50 + 8
Step 3: Perform subtraction and addition from left to right:
100 - 50 = 50
50 + 8 = 58
Answer: 58
Q5: Find the value of: 8 + [5 × (6 - 2)]
Step 1: Apply BODMAS - evaluate innermost brackets first
(6 - 2) = 4
Step 2: Expression becomes: 8 + [5 × 4]
Step 3: Evaluate the square bracket:
5 × 4 = 20
Expression becomes: 8 + 20
Step 4: Perform addition:
8 + 20 = 28
Answer: 28
Q6: Simplify: 24 ÷ (12 - 4) × 2
Step 1: Apply BODMAS - evaluate brackets first
(12 - 4) = 8
Step 2: Expression becomes: 24 ÷ 8 × 2
Step 3: Perform division and multiplication from left to right:
24 ÷ 8 = 3
3 × 2 = 6
Answer: 6
Showing 6 of 8 questions. Visit the full page for complete solutions.
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