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Use the Self-Check questions and the menu to choose practice with estimating, adding, and subtracting fractions.
Solve the following problems. Use tools such as number lines, two sets of fraction circle pieces, pictures, and your own strategies. Show all your work.
- Nicholas says, “
+ 
= 
.” Use the number line below to estimate the sum. Decide if you think Nicholas's answer is correct. Show or tell why you think so. - Mara used the number line below to estimate the sum of
+ 
. She forgot to label her hops and the number line. - Sketch and label the number line to show how Mara estimated + .
- Show how to solve + using circle pieces.
- Was her estimate reasonable?
