Question

Justine has 162 red buttons, 98 blue buttons, and 284 buttons. She says she knows she has more than 500 buttons without adding. How can we explain that without adding?

Answer 1

500 - 284 = 216

216 - 98 = 118

Answer 2

would it be by visual estimating with rounding each number to the nearest 100?

Answer 3

But you're still adding.

Answer 4

I do not have an answer then. There is nothing in my 3rd grade math book to help me with this.

Answer 5

I showed you how to find the answer by subtracting.

500 - 284 = 216

216 - 98 = 118

118 is more than 162, so you know that those numbers than 500.

Answer 6

You know that those numbers add up to more than 500.

Answer 7

Thank you, Ms. Sue!

Answer 8

You're welcome, Kylie.

Answer 9

Thanks for the help

Answer 10

55 x 55 is more than 1000

Answer 11

who is mr sue