Decimal Operations Practice

5th Grade MathPlace Value and Decimals4 pages

About this worksheet

Practice with all four decimal operations for 5th grade math, targeting Common Core 5.NBT.7. Students line up place values to add and subtract (24.65 + 18.79, then 70.02 - 34.68 with its double regrouping), multiply and divide with problems such as 4.8 × 3.5 and 29.4 ÷ 6, and apply the skills to money and measurement stories about Maya's school supplies and a 14.4-meter ribbon spool. A Spot the Error section ends the sheet: a student multiplied 5.6 × 0.4 and recorded 22.4, and it falls to your class to say what went wrong.

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$Decimal Operations Practice: Place Value and Decimals - page 1$

$Decimal Operations Practice: Place Value and Decimals - page 2$

$Decimal Operations Practice: Place Value and Decimals - page 3$

$Decimal Operations Practice: Place Value and Decimals - page 4$

Curriculum objectives covered

5.NBT.7

“Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.”

Every question lives here: questions 1 to 4 add and subtract to hundredths, 5 to 8 multiply and divide, 9 and 10 apply the operations to money and meters, and questions 11 and 12 make students explain the reasoning behind decimal placement.

What's inside this worksheet

Section 1: Addition and Subtraction

Students line up decimal points for 24.65 + 18.79, 52.3 - 19.84, 108.45 + 37.8 and 70.02 - 34.68, showing regrouping. The ragged place values in 52.3 - 19.84 force a written zero.

Section 2: Multiplication and Division

Four computations follow: 4.8 × 3.5, 16.75 × 4, 8.52 ÷ 4 and 29.4 ÷ 6. The key models place value strategies, such as splitting 8.52 into 8 and 0.52 before dividing.

Section 3: Word Problems

Maya buys 3 notebooks at $2.45 each plus $4.89 of gel pens, totaling $12.24 before tax. Liam cuts a 14.4-meter ribbon spool into 6 equal pieces of 2.4 meters.

Section 4: Spot the Error

A worked box shows a student computing 56 × 4 = 224 and recording 22.4 for 5.6 × 0.4. Students explain the missing second decimal place and write the correct product, 2.24.

How teachers use it

Mixed-operation review

Most decimal worksheets isolate one operation. Use this one late in the unit, when the real skill is noticing which operation each problem needs before the pencil moves.

Error-analysis discussion

Section 4 is the discussion piece. The student's whole-number work (56 × 4 = 224) is correct, which is exactly why 22.4 feels plausible. Let students find the flaw before you name it.

Estimation habit-building

Before section 2, have students write a rough estimate next to each problem. 4.8 × 3.5 should feel like about 5 × 3.5, which catches misplaced decimal points on its own.

More 5th Grade Math worksheets

Operations with Fractions Measurement and Data Geometry Order of Operations

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