Lesson: Subtracting Ones from Two-Digit Numbers without Regrouping Mathematics • 1st Grade

Students will be able to

• count back to subtract a one-digit number from a two-digit number without crossing a ten,
• subtract one-digit numbers from two-digit numbers using place value blocks,
• subtract one-digit numbers from two-digit numbers, recording the calculation in a place value chart,
• use place value language to describe subtraction,
• solve word problems involving subtraction of one-digit numbers from two-digit numbers without regrouping.