Mystery Bag
Which property allows us to swap the order of addends?
Commutative Property
467 + 233
700
Subtract 435 - 123
312
A group of monkeys in the Amazon Rainforest had 234 members. The following year, there were only 175 members. How many more monkeys were in the group the first year?
59
What do we call the numbers that we add together?
Addends
Which property allows us to change the way we group addends?
123 + 456
579
Subtract 894 - 873
21
It is 217 miles from Boston to New York
It is 790 miles New York to Chicago.
Jerry drives from Boston to New York on Monday, and from New York to Chicago on Tuesday. How many miles did he drive in all?
217 + 790 = 1007
What is the result of a subtraction problem called?
Difference
Which property is used to turn
340 + 230 + 450
into
340 + (230 + 450)
The Associative Property
422 + 799
1,221
Subtract 726-259
467
Jenny has 120 more marble than David. David has 75 marbles. How many marbles do they have together?
Jenny: 120 + 75 = 195
David: 75
Together: 195 + 75 = 270
What do we call the number that is taken away in a subtraction problem?
Subtrahend
17 ones can be regrouped as ______ tens and ______ ones
1 ten and 7 ones
Word Problem: Sunnyside school has 456 students. Oceanview school has 346 students. Seaway school has 567 students. How many students are at Sunnyside and Seaway combined?
456 + 567 = 1,023
Subtract 234 - 169
65
Word Problem: Sunnyside school has 456 students. Oceanview school has 346 students. Seaway school has 567 students. How many more students are at Sunnyside and Seaway combined than at Oceanview?
Sunnyside and Seaway: 456 + 567 = 1,023
1,023 - 346 = 677
What do we call the number that we start with in a subtraction problem
Minuend
25 tens is the same as ______ hundreds and _______ tens
2 hundreds and 5 tens
Combine 578 and 796
1,374
Subtract 900 - 147
753
A grocery store received 600 pieces of fruit. They sold 217 pieces on Monday and 333 pieces on Tuesday. How many pieces of fruit remain?
Amount they had: 600
Amount sold: 217 + 333 = 550
Amount left: 600 - 550 = 50
In 345 - 120 = 225, the number 120 is called the
subtrahend