Grade 5 math facts
Explore decimal multiplication and division, factors, multiples, and fractions with different denominators. Percentages connect parts to a whole of one hundred. Revisit multiplication tables when finding common factors becomes slow.
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.
- Decimal × decimal
- Decimal ÷ decimal
- Greatest common divisor
- Least common multiple
- Simplify fractions
- Unlike denominators
- Fraction × or ÷ integer
- Percentages
Connect common multiples to fractions
To add 1/3 and 1/4, use twelfths: 1/3 = 4/12 and 1/4 = 3/12, giving 7/12. Explain why the numerator and denominator change together when making an equivalent fraction. Separately, find common factors of 12 and 18 to reduce 12/18 to 2/3. These two tasks use related facts but solve different problems.
Watch for factors versus multiples
A factor divides a number exactly; a multiple is obtained by multiplying that number by a whole number. Confusing these can lead to the wrong common denominator. Decimal multiplication has another trap: 0.4 × 0.5 is 0.2, not 2. The result represents half of four tenths, so an estimate below 0.4 helps catch the misplaced decimal point. For percentages, identify the whole before calculating a part.
Preparing for Grade 6
Equivalent fractions and reduction support fraction multiplication and division. Common multiples help with ratios and mixed decimal-fraction expressions. Before advancing, ask the learner to justify one equivalent fraction and one decimal estimate. If the explanation is unclear, revisit that relationship with a picture or number line, then use a focused game round to apply it.