Subtraction Concepts and Techniques

The video tutorial explains subtraction with regrouping, using examples like losing points, selling raffle tickets, and selling robot toys. It demonstrates how to handle cases where a larger number is subtracted from a smaller one by borrowing from the tens place. The tutorial also covers subtraction without physical counters and emphasizes checking subtraction results with addition to ensure accuracy.

If you have 14 points and lose 5, how many points do you have left?

• 7

• 9

• 10

• 8

Tags

CCSS.2.NBT.B.5

What is the first step when subtracting a larger number from a smaller number?

• Add 10 to the smaller number

• Regroup by borrowing from the tens place

• Subtract directly

• Multiply the numbers

Tags

CCSS.2.OA.A.1

How many raffle tickets are left if a team has 45 and sells 8?

• 38

• 35

• 37

• 36

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

When subtracting 8 from 45, what do you do after regrouping?

• Add the numbers

• Subtract the tens place

• Multiply the numbers

• Divide the numbers

Tags

CCSS.2.OA.A.1

If a store has 62 robot toys and sells 9, how many are left?

• 53

• 51

• 54

• 52

Tags

CCSS.1.OA.C.6

What is the result of 12 minus 9?

• 5

• 2

• 3

• 4

Tags

CCSS.2.OA.A.1

How many cookies are left if 24 are baked and 7 are eaten?

• 15

• 16

• 18

• 17

Tags

CCSS.5.NBT.B.7

What is the benefit of writing subtraction problems vertically?

• Easier to line up places

• Less space needed

• Faster calculation

• More accurate

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

What is the result of 91 minus 6?

• 83

• 86

• 85

• 84

Tags

CCSS.1.OA.A.1

How can you verify your subtraction result?

• By subtracting again

• By dividing the numbers

• By adding the difference to the subtrahend

• By multiplying the numbers

Tags

CCSS.1.OA.A.1