Decimal Fractions and Decimal Notation: Grade 4 Math Test Answer Key – PDF Download

Grade 4 Decimals Test Answer Key: questions 1–5

Question 1: Shaded grid (2 points)

1. \(rac{58}{100}\).
2. \(0.58\).

Scoring: 1 point for each part.

Question 2: Fractions to decimals (2 points)

1. 0.7
2. 0.07

Scoring: 1 point for each part. Give no point if the digit is in the wrong place.

Question 3: Decimals to fractions (2 points)

1. \(rac{3}{10}\)
2. \(rac{46}{100}\)

Scoring: 1 point for each part. The denominator must match the place of the last digit.

Question 4: Decimals on a number line (2 points)

1. Each step is 0.01, so A is 0.53.
2. B is 8 steps after 0.5: 0.58.

Scoring: 1 point for each point.

Question 5: Adding fractions (2 points)

1. \(rac{60}{100} + rac{7}{100} = rac{67}{100}\) = 0.67
2. \(rac{40}{100} + rac{35}{100} = rac{75}{100}\) = 0.75

Scoring: 1 point for each part: 0.5 for renaming the tenths, 0.5 for the correct sum.

Grade 4 Decimals Test Answer Key: questions 6–9

Question 6: Compare decimals (2 points)

1. \(0.70 > 0.69\): >
2. \(0.08 < 0.10\): <

Scoring: 1 point for each correct symbol with correct reasoning.

Question 7: Rainfall (3 points)

1. As hundredths: 0.40, 0.35, 0.04. The order is 0.04, 0.35, 0.4.
2. \(rac{4}{10} + rac{35}{100} = rac{40}{100} + rac{35}{100} = rac{75}{100}\). 0.75 inch.

Scoring: Part a: 2 points for the correct order, 1 point if only one number is out of place. Part b: 1 point.

Question 8: Garden squares (3 points)

1. \(rac{34}{100} = \)0.34.
2. Two full rows are shaded: \(rac{20}{100} = rac{2}{10} = \)0.2.
3. \(rac{34}{100} + rac{20}{100} = rac{54}{100} = \)0.54.

Scoring: 1 point for each part. In part b, 0.5 for the fraction and 0.5 for the decimal.

Question 9: Place value (2 points)

1. The 6 is in the tenths place: 6 tenths, or 0.6.
2. \(4.63 = 4 + rac{6}{10} + rac{3}{100}\)

Scoring: 1 point for each part. Both blanks must be correct in part b.

Scoring summary

How to use this grade 4 decimals test answer key

Use this grade 4 decimals test answer key to score the test fairly and to see which skills need more practice.

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Grade 4 Decimal Fractions and Decimal Notation test answer key

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