Vocabulary
0,1,2,3,4,5,6,7,8,9 are all ______
Digits
What property?
87 + __ = 87
Identity Property of Addition
94 - __ = 0
94
Does the order of the numbers matter in subtraction problems? Explain why.
Yes. Unlike in addition, changing the order changes the answer.
Mylo saw 13 robins and 18 crows on his way to school. How many birds did he see altogether?
31 birds
The answer to an addition problem.
Sum
Use the commutative property of addition to solve.
7,342 + 983 = ___ + 7,342
983
25 + 88 = 88 + __
25
What addition problem would you use to check the answer? 882 - 734 = 148
148 + 734 = 882
Suzi had 83 jelly beans, but she had a hole in the bag and some dropped out on her way home. She sadly counted 50 jelly beans at home. How many jelly beans did she lose?
33 jelly beans
The name of a number being added to another number
Addend
What property?
(34 + 55) + 29 = 34 + (__ + 29)
Associative Property of Addition
100 more than 32,054
32,154
941 - 720 = ___
221
Angelina has collected 754 baseball cards and 392 football cards. She just bought a pack of 24 new baseball cards. How many baseball cards does she have now?
778 baseball cards
The answer to a subtraction problem is called ________
difference
The identity property of addition relates to what digit?
0 (zero)
What do you call the process you do when you have two digits add up to 10 or more?
Regrouping
What do you call the first number of a subtraction problem?
Minuend
Ms. Morales has taught for a few years. She has taught 264 third graders, and some fourth graders over her years of teaching. Altogether, she has taught 503 students. How many fourth graders has she taught?
239 fourth graders
The name of the number being subtracted in a subtraction problem.
Subtrahend
What addition property relates to how addends are grouped together?
Associative Property of Addition
4,397 + 2,287 = ____
6,684
84,005 - 12,840 = _____
71,165
Suzi, Mylo, and Angelina went to the store. Suzi had $5 more than Mylo, who has $2 more than Angelina. After Angelina spent $3, she had one dollar left. How much money did they have together before Angelina spent her money?
Angelina had $4, Mylo has $6, and Suzi has $11 for a total of $21.