Over the last little while in math we have been working on multiplication. We first worked on strategies for multiplying single digits by single digits (e.g. 7×9). Last week, we worked a lot on various strategies for multiplying a 2-digit number by a 1-digit number (e.g. 34 x 6).

Many students today have not mastered memorizing multiplication facts, so until they do, they need some strategies to help.

We learned about many strategies including, but not limited to:

Multiplying is really repeated addition (3×6 is 6+6+6)

Multiplying is skip counting (6, 12, 18)

Stacking (what most of our moms and dads do when multiplying)

Decomposing (34 can be 30 AND 4)

Friendly TENS numbers (take away the zero, add the zero when multiplying by numbers like 40)

NEAR friendly numbers (e.g. when multiplying 39 x 7, do 40 x 7, then subtract one group of 7)

Doubling (if multiplying by 4, you can multiply by 2 first, then double it)

Finger trick for multiplying by 9

Array model

Today we began talking about division. We looked at this picture first to help us understand WHAT division is and how it is connected to multiplication.

You can help your child at home by practicing their multiplication facts until they know them by heart.

Also, help them see that division is about equal groups. We have 20 pieces of potato for dinner. If we give each of our 4 family members an equal amount, how many pieces will each person get?