Adding Strategies

Adding Strategies

You can move or separate addeneds to make them easier to add!!!

Multiple Choice

Is it allowed to move addends around before adding them?

• Yes, you bet!

• No way!

You can also add numbers in different orders to make it easier.

• Look how the 7 and 3 make a 10

• Look how the 4 and 6 make a 10

Go get your notebook!

• Open it

• Turn it sideways

Multiple Choice

Ms. Gomez sold 23 cucumbers, 38 tomatoes, and 42 peppers. How many vegetables did she sell in all? Find 23+38+42

• 103

• 95

• 65

1. Copy down these problems.
2. Give a camera high five when finished
3. Follow Ms. Lukatya's directions

• 23+27+31

• 47+26+43

Multiple Select

Which is the correct way to write 142 in expanded form?

• 100+42

• 100+40+2

Multiple Select

Which is the correct way to write 436 in expanded form?

• 400+30+6

• 4 +36

We can use expanded form to make adding numbers too!

100+40+2

400+30+6

Add the ones, the tens, the hundreds!

This doesn't work all of the time..

If we have to carry numbers it won't work. But this can be helpful for doing math in our head.

Multiple Choice

200+30+2

400+20 +6

• 212

• 658

Multiple Choice

300+50+3

100+20+6

• 479

• 213

Multiple Choice

500+20+4

100+40+3

• 667

• 129