Subtraction without Regrouping

2-Digit Subtraction Lesson ( Without Regrouping)

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What is Subtraction?

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Subtraction with 1 Digit Numbers

• Subtracting with 1 digit numbers may seem easy

• Remember all your doing is finding the difference between 2 or more numbers

Subtraction with 2 Digit Numbers

When your doing subtraction with 2 digit numbers you must remember to always start in the One's place

Another way to remember this is that you must always do the problems from right to left

Subtraction with 2 Digit Numbers Continued

• In some or if not most Subtraction problems you will have to use Regrouping

• You have to use Regrouping when you use subtraction to find the difference between a smaller number and a bigger number

Poll

How are you feeling so far?????

• I have no clue what we are talking about!

• I know a little but need to learn more. 

Let's try some Subtraction!

Get your white boards ready!

Multiple Choice

74-31

• 34

• 43

• 23

• 25

Multiple Choice

What is 89 - 43?

• 46
• 64
• 42
• 45

Fill in the Blanks

38-16=

Multiple Choice

What is 78 - 55?

• 23
• 24
• 21
• 33

Fill in the Blanks

75- 20=

Multiple Choice

$$67-32=$$  

• 25

• 35

• 32

Fill in the Blanks

Fill in the Blanks

Imagine School had 57 chromebooks. 30 students checked out a chromebook. How many chromebooks are left?