Adding
What is the sum of 346 + 222?
568
Solve.
462 - 221
241
Find the sum of 96 + 314
410
How can you check your answer for 14 + 62 = 76?
What is the sum of 649 + 268?
917
Subtract 454 from 600.
146
Find the difference.
312 - 44
268
What is the inverse operation of subtraction?
Addition! This is why you can use addition to check your work when you are subtracting. You can use subtraction to check your work when you are adding!
What is the answer to a subtraction problem called?
Difference
What is the sum of 135 + 49?
184
767
Subtract 195 from 300.
105
What equation can you use to check 138 - 106 = 32?
32 + 106 = 138
This property says that when you add zero to any number, the number stays the same!
Commutative, Identity, or Associative?
Identity Property
TRUE or FALSE?
100 + 247 + 328 = 665
FALSE
Find the difference.
400 - 76
324
Find 463 + 140. Then subtract the sum from 821.
218
How can you check this answer using inverse operations?
648 + 225 = 873
Subtract 225 from 873 OR
Subtract 648 from 873
This property says that you can switch the order of the addends and the sum will stay the same!
Commutative, Identity, or Associative?
Commutative Property
What is the sum of 356 + 522 + 24?
902
Use place value to subtract 245 from 461. How many times do you have to regroup?
1 time
Find the sum of 498 and 279.
777
How can you use addition to check 463 - 249 = 214?
394 + 249 = 214
This property says that you can change how numbers are grouped when adding and the sum will stay the same.
Commutative, Identity, or Associative?
Associative Property