Subtraction
Missing Piece
Addition
Do You Agree?
Same Value
100
428 - 115 =
313
100
Find the number that makes the equation true:
900 + ________ = 1,000
100
100
537 + 312 =
849
100
Miss Boone says that 93 + 48 + 7 + 32 = 180
Do You Agree?
Yes!
100
Which is the same value as
6 hundreds + 8 tens + 5 ones?
a. 658 b. 775
c. 695 d. 685
d.
200
784 - 82 =
702
200
Find the number that makes the equation true:
400 + _______ = 1,000
600
200
165 + 320
485
200
Ms. Douglas says that
2 hundreds + 3 tens + 4 ones = 2 hundreds + 3 tens + 14 ones
Do You Agree?
No!
234 ≠ 244
200
Which is the same value as
2 hundred + 2 tens + 16 ones?
a. 226 b. 336
c. 236 d. 216
c.
300
836 - 429 =
407
300
Find the number that makes the equation true:
740 + ________ = 1,000
260
300
249 + 722 =
971
300
Mrs. Rosenbaum says she can find the value of 200-79 by using these equations:
79 + 1 = 80
80 + 20 = 100
100 + 100 = 200
So 200-79= 121
Do You Agree?
Yes! You can add on from 79 to get to 200 and get your answer!
300
Which expression has the same value as 400 + 250?
a. 300 + 150 b. 800 - 350
c. 900- 250 d. 400-250
c.
400
586 - 298 =
288
400
Find the number that makes the equation true:
________ + 390 = 1,000
610
400
181 + 298 =
479
400
Mrs. Aiken says that to find the value of 373 - 91 she can subtract 100 then add 9.
Do You Agree?
Yes!
If you subtract 100 that is 9 more than you need to subtract so we would have to add back those 9
373- 100 = 273
273+9 = 282
400
Which expression has the same value as 950-150?
a. 950 +150 b. 400 +400
c. 350 +500 d. 350 + 350
b.
500
600 - 327 =
273
500
Find the number that makes the equation true:
538+ _________ = 1,000
462
500
476 + 436 =
912
500
Mrs. Nicholls says that these equations can help you find the value of 582-145
Do You Agree?
Yes! These equations show how to subtract with like values and use regrouping to find the answer!
582-145 = 437
500
Which TWO expressions have the same value as
135 +200?
a. 235 + 100 b. 935-700
c. 100 + 200 d. 295 + 40
a. and d.