← Back to the Decimal Operations test
Last updated: October 22, 2026 · Written by the Math Made Easy math teachers
Each solution shows the expected steps and a scoring guide. Give partial credit when the method is right but a misplaced decimal point or small slip changes the final number.
Standards: 6.NS.B.3 · Level: Grade 6
Question 2 Multiply (2 points)
- 58 × 4 = 232, two places: 2.32.
- 36 × 15 = 540, four places: 0.054.
Scoring: 1 point for each part.
Question 3 Divide (2 points)
- 2.4
- 54 ÷ 9 = 6.
Scoring: 1 point for each part.
Question 4 Find the Error (2 points)
The digits were lined up on the right instead of by the decimal points, so 7 tenths was added to the hundredths place. With points aligned, 12.45 + 3.70 = 16.15.
16.15
Scoring: 1 point for the explanation; 1 point for the correct sum.
Question 5 Estimate and Multiply (2 points)
- 25 × 3 = about 75.
- 248 × 31 = 7,688, two places: 76.88.
Scoring: 1 point for each part.
Question 6 Butter for Cookies (3 points)
- 8.4 ÷ 0.35 = 840 ÷ 35 = 24 batches.
- 20 × 0.35 = 7, and 8.4 − 7 = 1.4 pounds.
Scoring: 2 points for (a) (1 point for a correct setup); 1 point for (b).
Question 7 Store Receipt (3 points)
- 5.55 + 1.90 + 2.40 = $9.85.
- 20 − 9.85 = $10.15.
Scoring: 2 points for (a); 1 point for (b).
Question 8 Bike Shop Profit (3 points)
Cost: 25 × 14.80 = 370. Sales: 25 × 21.95 = 548.75.
Profit: 548.75 − 370 = $178.75.
Scoring: 1 point for the cost, 1 point for the sales, 1 point for the profit.
Question 9 Place the Point (1 point)
Two decimal places in total: 19.76.
Scoring: 1 point for the correct product.