What are these called?
0 1 2 3 4 5 6 7 8 9
90 − 27
63
524 − 213
311
_____ - 10 = 47 - 27
30
Liam collected 842 stickers for a school project. He gave 275 stickers to his classmates. How many stickers does Liam have left?
Liam has 567 stickers left.
When referring to the position in a 4 digit number, we mean a digit's _________ __________.
place value
63 − 8
55
432 − 158
274
_________ + 10 = 87 - 10
67
A library had 1,456 books at the beginning of the year. Over the summer, 327 books were checked out. How many books are still in the library?
1,129 books were left in the library.
The result of subtracting one number from another. It represents the numerical value between two numbers, indicating how much one is greater or smaller than the other.
Difference
400 − 125
275
701 − 386
315
45 − 19 = ___ − 20
46
A school ordered 325 new books for the library. On Monday, 148 books were delivered. On Tuesday, 97 more books arrived. How many books still need to be delivered?
➡️ Step 1: Add the books delivered: 148 + 97 = 245
➡️ Step 2: Subtract from the total ordered: 325 − 245 = 80 books
80 books need to be delivered.
We can use rounding to come up with an _____________ as a way to check our answers.
estimate
72 − 39
33
6,241 − 3,120
3,121
___ − 32 = 58 − 30
60
A factory produced 1,245 toys in January. In February, it produced 1,038 toys. If 1,100 toys were sold in total during those two months, how many toys are left in the factory?
➡️ Step 1: Add total production: 1,245 + 1,038 = 2,283
➡️ Step 2: Subtract toys sold: 2,283 − 1,100 = 1,183 toys
1,183 toys were left in the factory.
Mrs. Nelson's favorite "Show Your Work" song:
When in doubt, write it _________!
out
1,000 − 498
502
5,003 − 2,478
2,525
1,456 - 327 = ________ - 100
1,229
A concert venue had 3,250 seats available for a weekend event. On Saturday, 1,478 tickets were sold. On Sunday, 1,236 tickets were sold. After the weekend, 85 tickets were refunded. How many tickets were used in total?
➡️ Step 1: Add Saturday and Sunday ticket sales: 1,478 + 1,236 = 2,714
➡️ Step 2: Subtract refunded tickets: 2,714 − 85 = 2,629 tickets used
2,629 tickets were used in total for the weekend event.