Addition
81+13+19
113
570-311
259
175 to the nearest ten and hundred
180/ 200
18+77
100
7x6
42
184+55
239
75-36
39
805 to the nearest ten and hundred
810/800
856-44
820
9x8
72
Solve. 108 + 116 + 102 + 124
What properties would you use to make this easier?
450
commutative
650-211
439
School Number of Students
Cedar 172 Redwood 246
Elm 328 Maple 165
Oak 251
To the nearest hundred, how many students attend each school?
200
200
300
200
300
339 + 214
Round the addends and sum to the nearest ten
550
Brandon has 4 bags of ice cubes. Each bag has 5 pounds of ice. He also has some ice cubes in trays. Brandon has 22 pounds of ice in all. How many pounds of ice cubes in trays does he have?
2 pounds
James and Christopher use connecting cubes to build one tower. James uses 94 cubes and Christopher uses 77 cubes. How many cubes are in the tower?
171 cubes
743-552
191
Cedar 172
Redwood 246
Elm 328
Maple 165
Oak 251
To the nearest ten, how many students attend each school?
170
250
330
170
250
173 – 91
Estimate the difference
170-90=80
At the bowling alley, you can bowl for $4 each game plus a one time fee of $2. Rosia bowls 3 games. How much does it cost her to bowl?
$14
356 + 163
519
Ilana has a collection of 59 crayons. She has 6 boxes of crayons, each with the same number of crayons. Ilana also has 17 loose crayons. How many crayons are in each of the boxes?
7 crayons
Write a word problem where the sum rounds to 500
Answers May Vary
Baseball bat $38
Skateboard $65
Snowboard $347
Tennis racket $179
Goalie gloves $114
The original price of a snowboard is $489. About how much less is the sale price than the original price?
$490 – $350 = $140
Mario has 8 books of short stories. Each book has 5 stories. He has 13 other short stories. How many short stories does Mario have?
53