Week 6 of 8
Week 6
4th Grade → 5th Grade · Factors multiples and Opinion writing
Math
Factors and Multiples
Factors are numbers you can multiply to make another number. A number is a factor if it divides the other number with nothing left over. Fourth grade, using the multiplication facts.
The mistake to watch for. Forgetting 1 and the number itself, or listing only the first pairs found.
How to help. Look for pairs: 1 × 12, 2 × 6, 3 × 4. Check each whole number up to the middle, and write each pair's partner too.
A worked example
List the factors of 18. Check each number from 1: 1 × 18, 2 × 9, 3 × 6. So the factors are 1, 2, 3, 6, 9 and 18. 4 and 5 do not divide 18 evenly.
Words for this week
- factor
- A number you multiply. In 4 × 6 = 24, the factors are 4 and 6.
- multiple
- What you get when you multiply a number by 1, 2, 3 and so on. The multiples of 4 are 4, 8, 12 …
- divide
- To share a number into equal groups, or to find how many groups fit.
- product
- The answer you get when you multiply.
- multiply
- To add the same number again and again, in a faster way.
Read this week
Cardamom
A short food article from our Learn library, chosen for this reading level. Read it together, then ask your child to tell you one new thing they learned.