Chapter 2 Review
87
3. Calculate percentages of numbers. Round your answers to the nearest
hundredth (.01). Example: 6% of $1,200 = 0.06 × $1,200 = $72
A. 2% of $8,500 = B. 7.5% of $16,000 =
C. 8% of $22,300 = D. 14% of $22,715 =
4. Change percentages to decimals by moving the decimal two places to
the left. Example: 12% → .12
A. 17% → B. 3% →
C. 9.3% → D. 8.5% →
5. Add decimals. Example: 36.5 + 7.35 + 72.4 = 116.25
A. 4.6 + 2.3 + 12.5 = B. 7.3 + 8.4 + 4.6 =
C. 45.9 + 21 + 4.6 = D. 12 + 5.3 + 1.9 =
6. Multiply decimals. Round your answers to the nearest cent ($0.01).
Example: $34.15 × 2.5 = $85.375 ≈ $85.38
A. $86.25 × 3.25 = B. $42.91 × 2.15 =
C. $21.45 × 1.55 = D. $6.73 × 4.5 =
7. Add decimals. Example: $75.15 + $54.96 = $130.11
A. $773.49 + $27.85 = B. $6,980 + $14.63 =
C. $68.16 + $25.90 = D. $409.75 + $72.58 + $25.35 =
8. Add and subtract decimals. Example: $84.52 + $53.56 – $35.33 = $102.75
A. $457.34 + $24.87 = B. $889 – $372.22 =
C. $37.85 + $59.60 – $31.84 = D. $134.98 + $150 – $9.57 =
9. Change percentages to decimals by moving the decimal two places to
the left. Example: 7.5% → .075
A. 7% → B. 38% →
C. 66.9% → D. 16.3% →
10. Multiply decimals. Round your answers to the nearest cent ($0.01).
Example: $15.25 × 1.5 = $22.875 ≈ $22.88
A. $125 × 0.15 = B. $36,000 × 0.04 =
C. $235.55 × 0.075 = D. $245 × 0.04 =