Grade 4 math facts
Develop long division with one- and two-digit divisors, decimal calculations, and mixed fractions. Order of operations and rounding help learners interpret expressions and check whether answers are reasonable before entering them.
Choose a skill to practice
Choose a link below to open the game, then press Start to begin the selected skill. Your practice round uses the same feedback and local progress storage as the main game.
- 2-digit ÷ 1-digit long division
- 3-digit ÷ 1-digit
- 2-digit ÷ 2-digit
- 3-digit ÷ 2-digit
- Order of operations
- Rounding numbers
- Add & subtract hundredths
- Decimal × integer
- Decimal ÷ integer
- Add & subtract mixed numbers
Estimate a quotient before dividing
For 156 ÷ 12, ten groups account for 120 and three more account for 36, so the quotient is 13. Check 12 × 13 = 156. Breaking the dividend into familiar chunks can help explain the written division procedure. In a separate round, compare 3 + 4 × 2 with (3 + 4) × 2 to see why operation order changes the result.
Watch for rounding and decimal-place errors
Rounding is a decision about a requested place, not a command to shorten a number arbitrarily. Identify that place and inspect the digit immediately to its right. In 1.25 + 0.4, align the decimal points and interpret 0.4 as 0.40. With mixed fractions, distinguish the whole-number part from the fraction part before combining them. Write an estimate to catch answers that are too large or too small.
Preparing for Grade 5
Decimal operations with integers prepare for multiplication and division involving two decimal numbers. Familiarity with division and multiplication also supports factors and multiples. When a Grade 5 fraction calculation requires a common denominator, the underlying multiplication and division should be comfortable enough that attention can stay on the fraction relationship. Return to those skills separately when needed.