Add it Up
143 + 152 = ?
295
3,475 - 1,789
1,686
134 + ? = 152
18
5 + 0 = 5
Which property does this show?
Identity, Commutative, OR Associative?
Identity
Ms. South has 456 glass owls and 762 plastic owls. how many owls does she have altogether?
1,218
234 + 189 = ?
423
13,765 - 8,987
4,778
(19 + 32) + ? = 89
38
(9 + 8) + 5 = 9 + (8 + 5)
Which property does this show?
Identity, Commutative, OR Associative?
Associative
Ms. South bought 156 small pumpkins. She gave 24 to 3rd grade and 26 to 5th grade. Then she had 65 given to her how many does she have left now?
171 pumpkins
457 + 1890 = ?
2347
50,908 - 23,986 = ?
26,922
45 + ? = 98 + 32
85
54 + 43 = 43 + 54
Which property does this show?
Identity, Commutative, OR Associative?
Commutative
Mrs. Messick had her class make 190 ghosts for the Halloween display. Ms. South's class made 234 ghosts. Mr. Gibson used 56 of the ghosts from 4th and 5th grade for his office. How many ghosts are left for the hallway?
368 ghosts
1429 + 3652 = ?
5,081
63,258 - 15, 986 = ?
47,272
56,987 + ? = 57,087
100
Round to the nearest ten to find the difference using estimation
4,567 - 3,251
1,320
On Monday, Ms. South made 156 paper bats for the haunted house. On Tuesday, she had to get rid of 35 that weren't perfect. On Wednesday, she made 178 more, how many total bats does she have now for the haunted house?
299 paper bats
21,653 + 89,653 = ?
111,306
50,000 - 4,905= ?
45,095
7,987,098 + ? = 7,997,098
10,000
Round to the nearest hundred to estimate the sum.
5,913 + 2,987
8,900
Ms. South won $5,000 from a teacher contest. She spent $2,981 on new technology for the classroom and $1429 on math games. She wants to buy $689 worth of new books. Will she have enough? Why or Why not?
No. Ms. South would only have $590 left, so she would be short by $99.