Vocab
How can you adjust addends?
To take away from one side and add that same amount to the other
"what you do to one side you have to do the opposite"
Autumn has 285 cubcash. She earns 10 more. How much cubcash does she have now?
295
Kamira adjusted the set of numbers 309 + 412 to find the sum.
She said 310 + 413
Would this work?
What is the sum?
813 + 145
958
235 + 512
200 + 30 + 5 + 50 + 10 + 2
Should be 500 not 50
What is sum?
The total amount added together
Leo has 423 toys. He gets 10 more. How many toys does Leo have now?
433
Allison is trying to adjust addends 703 + 192. Which letter would be an accurate strategy?
a) 700 + 195
b) 700 + 190
a
What is the sum?
256 + 223
479
What is the error?
423 + 612
4 + 2 + 3 + 6 + 1 + 2
Did not add by place value
What is place value?
Hundreds, tens, and ones
Ibrahim has 510 muffins. He buys 10 more. How many muffins does he have now?
520
Tiffany is trying to adjust the addends 814 + 168
What could the adjusted numbers be?
810 + 172
822 + 160
820 + 174
815 + 167
817 + 165
What is the sum?
515 + 132
647
What is the error?
147 + 208
100 + 40 + 7 + 200 + 10 + 8
There are 0 tens in the 2nd addend not 1
If you buy something does it mean you are adding more or subtracting?
Adding
Naomi has 390 stickers. She gets 10 more. How many stickers does she have now?
400
Kaleah is adjusting addends. She says one way to adjust 234 + 521 would be 230 + 520. Is she correct?
yes
What is the sum?
274 + 319
593
What is the error and what is the correct answer?
142 + 237
1 + 40 + 2 + 200 + 30 + 7
100 not 1
379
What is a synonym for error?
Mistake
607
Steven is adjusting addends to solve for the sum. He can't figure out if he should change the first addend or the second. Which one is correct?
Trick question, you can do either
What is the sum?
486 + 375
861
What is the error and what is the correct answer?
583 + 264
800 + 50 + 3 + 600 + 40 + 2
Place value out of order
847