Three digit subtraction with regrouping

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is when you borrow from the next higher place value to help subtract a smaller number from a larger number.

Tags

CCSS.7.NS.A.1C

Front

What is the first step in subtracting 735 - 257?

Back

The first step is to line up the numbers by place value: 735 on top and 257 below it.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you subtract the ones place in 735 - 257?

Back

In the ones place, you subtract 5 from 7, which equals 2.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What do you do if you can't subtract in the tens place?

Back

If you can't subtract in the tens place, you need to regroup from the hundreds place.

Tags

CCSS.2.NBT.B.7

Front

What is 3 - 5 in the tens place of 735 - 257?

Back

You cannot subtract 5 from 3, so you regroup from the hundreds place.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

After regrouping, what does the tens place become in 735 - 257?

Back

After regrouping, the tens place becomes 13 (10 + 3) because you borrowed 1 from the hundreds.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is 13 - 5 in the tens place of 735 - 257?

Back

13 - 5 equals 8.

Front

What is the last step in 735 - 257 after subtracting the tens and ones?

Back

The last step is to subtract the hundreds place: 7 - 2 equals 5.

Front

What is the final answer to 735 - 257?

Back

The final answer is 478.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the result of 671 - 399?

Back

The result of 671 - 399 is 272.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2