Mastering 3-Digit Subtraction with Regrouping

What does regrouping mean in subtraction?

• Adding numbers together

• Dividing one number by another

• Rearranging groups to subtract efficiently

• Multiplying numbers

Tags

CCSS.7.NS.A.1C

When subtracting two-digit numbers, what do you start with?

• The thousands place

• The ones place

• The tens place

• The hundreds place

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

In the example, how many cookies were left after subtracting 258 from 725?

• 512 cookies

• 358 cookies

• 467 cookies

• 275 cookies

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What do you do if you don't have enough ones to subtract?

• Add more to the ones place

• Borrow from the tens place

• Ignore the subtraction

• Start with the tens place instead

Tags

CCSS.2.NBT.B.7

How many cookies were left after subtracting 199 from 351?

• 162 cookies

• 150 cookies

• 142 cookies

• 152 cookies

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What is the result of 642 minus 175?

• 467

• 475

• 487

• 457

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What principle is applied if there's more on top?

• Borrow from the next place

• No need to stop

• Stop and regroup

• Add more to the top

Tags

CCSS.2.NBT.B.7

What should you do if there's more on the floor?

• Give up on the problem

• Subtract as usual

• Go next door and get 10 more

• Stop and ask for help

Tags

CCSS.2.NBT.B.7

How many decks of practice cards will the students have?

• Three decks

• Seven decks

• Five decks

• Ten decks

Tags

CCSS.3.OA.A.3

What is the main goal of regrouping in subtraction?

• To make subtraction easier

• To learn multiplication

• To avoid subtraction

• To practice addition

Tags

CCSS.5.NBT.B.7