Look at the strip diagram. Tell if you need to add or subtract.
Subtract
Look at the strip diagram. Tell if you need to add or subtract.
Subtract
Look at the strip diagram. Tell if you need to add or subtract.
Add
Look at the strip diagram. Tell if you need to add or subtract.
Add
Look at the strip diagram. Tell if you need to add or subtract.
*Hint: This is a multi-step problem!
Two step problem. First step add 236+148 then subtract that from 512
Look at the strip diagram. Tell if you need to add or subtract.
subtract