This week in maths, the children have been multiplying by 10 and 100.
We’ve discussed how when we multiply a number by 10, all the digits move one place to the left and we put a zero in our ones column.
When we multiply a number by 100, all the digits move two places to the left and we put zeros in our tens and ones columns.
When writing our multiplication expressions, we must remember they are commutative (you can swap the factors around and get the same product).
- 3 x 100 = 300
- 100 x 3 = 300
Help at home: ask your children to complete these multiplications and explain their processes.
- 30 x 100 =
- 6 x 10 =
- 904 x 10 =
- 55 x 100 =
- 42 x 10 =
- 13 x 100 =