standard_description: Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, a/b + c/d = (ad + bc)/bd.)
problem_activity: Stage 3: Add and Subtract Tenths, Hundredths, and Thousandths
Required Preparation
Materials to Gather
Dry erase markers
Paper clips
Sheet protectors
Materials to Copy
Blackline Masters
Jump the Line Stage 3 Spinner
Jump the Line Stage 3 Gameboard

Narrative
Both players start at 0 on a number line marked by
\(\frac{5}{1,000}\)
. Spinners show adding or subtracting tenths, hundredths, or thousandths.
Additional Information
Each group of 2 needs a sheet protector, a dry erase marker, and a paper clip.


aligns: no