Preview: Intro to Decimals
1-2 pagesIntro to Decimals
📖 Concept
Decimals = parts of a whole written with a dot. 0.5 = half.
✏️ Write as Decimal
📌 Also try: Identifying Fractions — build number sense
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Printable worksheet with answer key. A4 size. No signup required.
About This Introduction to Decimals Worksheet
This introduction to decimals worksheet helps Grade 4 students understand decimals as an extension of place value — tenths and hundredths as fractions with denominators of 10 and 100. Students convert between fractions and decimals, shade decimal models, and place decimals on number lines. This is the first formal encounter with decimals for most students. Print on US Letter or A4. Answer key included.
What Students Will Learn
Students learn that 0.3 means "3 tenths" — the same as the fraction 3/10. Using hundredths grids, they visualize that 0.25 covers 25 out of 100 squares, connecting decimals to money (25 cents = $0.25). The worksheet builds the bridge between fractions (which students already know) and decimals (which will be essential for measurement, data, and middle school math).
How Teachers Can Use This Worksheet
- With money as a hook (5 minutes): Hold up a quarter and ask, "How do we write 25 cents in dollars?" Write $0.25 on the board. Explain that decimals are just another way to write fractions of a whole — one students already use with money.
- As guided practice (20 minutes): Work through the tenths section together, having students shade grids and write both the fraction and decimal forms. Then let them tackle the hundredths section independently.
- For common errors: Watch for students writing "0.5" when they mean "0.05" — the zero after the decimal point is critical and often missed. Use the visual grids to reinforce why 0.5 (half shaded) looks very different from 0.05 (barely shaded).
How Parents and Homeschoolers Can Use This Worksheet
Use money to make decimals real. Show your child a dime ($0.10) and a penny ($0.01). Explain that dimes are tenths and pennies are hundredths. Let them practice writing amounts like "3 dimes and 4 pennies = $0.34." This concrete connection makes decimals much less abstract. For students who struggle with the visual grids, use graph paper to shade in 10x10 squares together.
Skills Covered
decimal place value · tenths and hundredths · fraction-decimal conversion · decimal models · number line placement · money notation