Lesson: Subtracting Ones from Two-Digit Numbers with Regrouping Elementary School Mathematics 1st Grade • Go Math! • Grade 2 • Common Core • Math Connects • Grade 2 • Volume 1 • Student Edition • enVisionmath2.0 • Grade 2 • Volume 1 • Common CoreMathematics
In this lesson, we will learn how to subtract a one-digit number from a two-digit number when crossing a ten and model this with place value equipment.
Sample Question Videos
Chloe used place value blocks to show that 73 is 7 tens and 3 ones.
She wants to take away 9 from 73, but there are not enough ones.
Pick another way she could make 73 so she can take away 9 ones.
Take away 9 ones to find .
A car park has 41 spaces. Two spaces are taken. How many are left?
Mason used place value blocks to show 64 in 6 tens and 4 ones.
He wants to take away 6 from 64. But there are not enough ones.
Pick another way he could make 64 so he can take away 6 ones.
Take away 6 ones to find .