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Decimal Numbers Grade 4-5 — Printable Worksheets

Generate decimal-numbers worksheets for Grades 4–5 — reading, comparison, addition, subtraction, multiplication by 10/100/1000, fraction-decimal conversion. No sign-up.

Grades 4–56 exercise typesRead, compare, add6 to 18 exercises10 themes

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Exercise type

Number of exercises 12

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Why master decimal numbers?

Decimal numbers are introduced from Grade 4 second term in most curricula and form one of the pillars of upper elementary. A child who doesn't master 2.5 + 0.75 by end of Grade 5 will struggle permanently in middle school — with measurements, ratios, percentages, and later algebra. This tool covers the 6 expected skills: read, compare, add, subtract, multiply by 10/100/1000, and convert a simple fraction to decimal.

Relevant grade levels : 🧮Grade 3

How to use this tool

1
Pick the grade (Grade 4 or 5). Grade 4 works with tenths (1 decimal); Grade 5 adds hundredths (2 decimals).
2
Select 1 to 6 exercise types: read, compare, add, subtract, multiply by 10/100/1000, convert.
3
Print the A4 sheet (6, 12, or 18 exercises) and work 10-15 minutes max.
4
Correct with the child, emphasizing oral reading: 'three units and five tenths' reads as 'three point five' and writes as 3.5.

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Tips for decimal numbers

Classic decimal trap: confusion between **whole part** (left of point) and **decimal part** (right). Many Grade 4 kids read 3.12 as 'three point twelve' when it should be 'three units and twelve hundredths' (or 'three point one two' digit-by-digit). Insist on correct verbalization. For comparison, most common error: thinking 0.12 > 0.5 'because 12 > 5'. Use a place-value table (units | tenths | hundredths) to align and compare digit by digit. For × 10, 100, 1000: shift the decimal point right (NOT 'add zeros' — wrong rule for decimals). 3.4 × 10 = 34, not 30.40. This requires specific drilling — the 'add a zero' rule learned on whole numbers creates lasting errors.

Frequently asked questions

When are decimals taught?▾

Officially from Grade 4 second term in most curricula. Grade 5 consolidates and extends to hundredths and complex operations. Complete mastery is required for middle school.

Why is 0.5 bigger than 0.12?▾

Because 0.5 = 5/10 = 50/100 and 0.12 = 12/100. So 50/100 > 12/100 → 0.5 > 0.12. The confusion comes from comparing 'like whole numbers' (12 > 5). Use a place-value table to align: position decides, not number length.

How to multiply a decimal by 10, 100, or 1000?▾

Shift the decimal point right by as many places as zeros in the multiplier. × 10 → shift 1, × 100 → 2, × 1000 → 3. Example: 3.45 × 100 = 345. Classic error: 'add two zeros' — works for whole numbers, not decimals.

How to add 2.5 + 0.75?▾

Line up by the **decimal points** (not last digits). Pad with non-significant zeros if needed: 2.50 + 0.75. Then add normally, keeping the decimal point. Result: 3.25. Essential technique — needs 2-3 practice sessions.

Link between fractions and decimals?▾

Decimals ARE fractions with denominator 10, 100, 1000, etc. 0.3 = 3/10. 0.25 = 25/100 = 1/4. 1.5 = 15/10. Making this link explicit helps enormously. If your child masters fractions, decimals become almost obvious.