Less Challenging

• Subtract 2-digit #s without renaming

• Subtract mult of 10 from 2-digit numbers

• Subtract multiples of 10 from mult of 10

More Challenging

• Subtract within 200 (3)

• Subtract 1 more or 1 less than a mult of 10

About This Sprint

Use multiples of 10 as benchmarks to subtract 2-digit numbers with 1 or 9 in the ones place, e.g.

73 - 30 = 43

73 - 31 is one less than 43

73 - 29 is one more than 43