Addition
23+19=?
?=42
75-36=?
?=39
decompose
to break down into smaller units
Jada had 53 stickers. She gave 15 stickers to Noah. How many does she have now?
53-15=38
What is Ms. Jordyn's cat's name?
Peanut
52+14=?
?=66
67-45=?
?=22
compose
to make up a whole
How many fewer rabbits are there than dogs at the shelter? (dogs - 35, rabbits - 19)
35-19=16
How do we read story problems?
1. without numbers
2. with numbers
3. what question is the story asking?
?+23=54
?=31
83-25=?
?=58
process of putting together
How many animals are there all together? (dogs - 35, rabbits - 19, cats - 27)
What are the names of Mrs. Bourgoin's daughters?
Lucy, Penelope
38+?=57
?=19
95-20=?
?=75
subtraction
process of taking away from another number
Hanna had some cookies. Jackson gave her 15 more. Now she has 35 cookies. How many did she start with?
?+15=35
?=20
What is Ms. Fisher's favorite food?
sushi
21+32+17=?
?=70
95-39=?
?=56
unknown number
a number we do not know its value yet
Kaysa had 24 oranges. He gave some to Luc. Now he has 13. How many did he give to Luc?
24-?=13
?=11
What are our Geiger rules?
Safe, respectful, responsible, kind