Students will understand patterns, properties and facts ... It is important that students develop automaticity with both addition and multiplication facts because multiplication of factors ...

There are lots of ways to build and describe multiplication problems. Using repeated addition, you can add equal groups together, one by one. A faster way would be to use some multiplication words ...

Doubling numbers Learn how to make doubles using ten frames, addition and multiplication. Counting in twos, threes, fives and tens Explore the different ways to count up in twos, threes ...

A new proof about prime numbers illuminates the subtle relationship between addition and multiplication — and raises hopes for progress on the famous abc conjecture. One morning last November, the ...