Decimal arithmetic practice worksheet with addition, subtraction, multiplication, and division exercises.

I'll solve all the decimal calculation problems step by step, checking my work carefully.

Let me start with the Adding section:
1. 2.4 + 3.3 = 5.7
2. 12.7 + 2.8 = 15.5
3. 6.72 + 5.49 = 12.21
4. 245.987 + 16.204 = 262.191

Subtracting section:
1. 7.4 - 3.3 = 4.1
2. 15.7 - 2.8 = 12.9
3. 6.79 - 5.42 = 1.37
4. 45.53 - 16.69 = 28.84

Multiplying section:
1. 2.4 × 3 = 7.2
2. 12.7 × 5 = 63.5
3. 6.72 × 10 = 67.2
4. 2.4 × 6.2 = 14.88

Dividing section:
1. 2.4 ÷ 3 = 0.8
2. 12.5 ÷ 5 = 2.5
3. 68.5 ÷ 10 = 6.85
4. 12.4 ÷ 1.2 = 10.333... (or 10.3̅)

For the mixed operations at the bottom:
1. (0.2 × 0.6) + (2.5 - 1.2) = 0.12 + 1.3 = 1.42
2. (2.5 × 4) + (3.758 - 2.36) = 10 + 1.398 = 11.398

Final Answer:
Adding: 5.7, 15.5, 12.21, 262.191
Subtracting: 4.1, 12.9, 1.37, 28.84
Multiplying: 7.2, 63.5, 67.2, 14.88
Dividing: 0.8, 2.5, 6.85, 10.33 (repeating)
Mixed Operations: 1.42, 11.398