3rd Grade Bridges Unit 1 Screener

I can use strategies to add within 100. Add these two numbers. Show your thinking. 45 + 29 = _________

I can use strategies to subtract within 100. Subtract these two numbers. Show your thinking. 91 - 35 = _________

A strategy to find 8 + 7 is to make a ten. What is the sum of 8 + 7 using this strategy?

I can use strategies to add within 20. 2a. Study the number rack and respond to the following: Choose the expressions that could represent the beads on the left side.

• 9 + 8

• (5 + 4) + (5 + 3)

• 10 + 4 + 3

• 8 + 7

• 9 + 5 + 3

Mark says he can use 8 + 8 to figure out how many beads are on the left side. How can he do that?