Hongofulu Problem Solving

Week 1, Term 3

Name:

Walt use a number of different strategies to solve multiplication problems

We know that 5x7 = 35. But how do we show this?

We can show this using:

• Times tables (as above)
• Doubling and halving e.g. if we know that 10x7 = 70, and we know that 5 is half of 10, what is half of 70? This will be our answer!

Problem:

5x9 = ?

Solve this problem using doubling and halving.

Show your working here:

Walt use a number of different strategies to solve multiplication problems

Sharie went to the beach. She found 8 different types of shells. She found 4 of each type of shell. She organised them into their groups. How many shells did she collect altogether?

Remember:

• Even if you know the answer, show how you could solve this by using doubling/halving.
• Our goal is to learn our times tables so we are quick at answering questions like this!

Show your working here:

Screencast

Walt use a number of different strategies to solve multiplication problems

With a friend, create your own word problem for a division question. Solve your problem.

• Can you solve this problem using a doubling/ halving strategy?

Your problem:

• ​

Show your working here:

Screencast