September Number Corner Day 23-30

What type of model is this?

• Loop & Group

• Picture

• Array

• Ratio Table

3 Spiders

1 Leg Missing

How many legs?

Which equation could be used to solve this problem?

• 3 x 8 - 1 =

• 3 x 8 =

• 3 + 8 - 1 =

• 8 - 1 =

Answer explanation

Correct Answer:

3 spiders x 8 legs each - 1 leg = ____

because...

3 spiders x 8 legs each = 24 legs

24 legs - 1 leg = 23 legs

What type of model is this?

• Loop & Group

• Picture

• Array

• Ratio Table

There are ​ (a)   rows and ​ (b)   columns.

• 3
• 8

Which equation matches the model?

• 8 + 3 =

• 8 x 3 =

• 8 - 3 =

• 8 + 8 =

What type of model is this?

• Loop & Group

• Picture

• Array

• Ratio Table

Which equation matches this loop & group model?

• 5 x 1 =

• 5 + 5 =

• 5 - 5 =

• 5 x 5 =

What type of model is this?

• Loop & Group

• Picture

• Array

• Ratio Table

This ratio table shows how many ​ (a)   are on each ​ (b)   .

• stars
• Betsy Ross Flag

We can use the number of stars on ​ (a)   flag to figure out how many stars are on ​ ​ (b)   flags.

• one
• two