Chapter 3: Subtraction 1-1000

subtracting Mentally

100

34 - 10

24

200

300 - 100

200

300

999 - 5

994

400

225- 25

200

500

700- 700

0

Subtraction w/o Regrouping

100

48- 24

24

200

849 - 205

644

300

600 -300

300

400

219 - 119

100

500

475- 120

355

Subtraction with Regrouping

100

600- 199

401

200

23 - 17

6

300

831 - 276

555

400

456- 189

267

500

963 - 875

88

Subtraction Vocabulary

100

I am a whole number, but I have another name in subtraction. What am I?

Minuend

200

Subtrahend and Difference are called? 

Parts!

300

Another name for me is take away, what am i?

Subtraction

400

You have to go next door and get 10 more. What am I?

Regrouping (subtraction regrouping)

500

what do you call me? I am the position of each digit in a number

(The value of each digit)

Place value

Misconceptions:True or False

100

The opposition of subtraction is division

FALSE

200

The inverse operation of addition is subtraction

TRUE!

300

When you subtract the numbers are INCREASING?

FALSE!

400

When it comes to subtraction, can start in the from left to right and bottom to the top?

FALSE!

500

Subtraction has a whole number with two parts

TRUE!