5th Grade Adding and Subtracting Decimals Quiz: 10 Questions with Explanations

Answer these 10 multiple-choice questions about adding and subtracting decimals. Choose the one best answer for each question. Some questions show a receipt or a hundredths grid. Read each explanation to learn how to avoid common mistakes.
Grade 5 · Common Core State Standards: 5.NBT.B.7
Remember
- Line up the decimal points so tenths are over tenths and hundredths are over hundredths.
- Write placeholder zeros so both numbers have the same number of decimal places.
- Regroup in decimals the same way you regroup whole numbers.
- Estimate by rounding to the nearest whole number to check the answer.
- Use the opposite operation to check: add the difference back to the subtracted number.
All Grade 5 chapters: Grade 5 math.
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