Show:
Value
Estimate
Numerical exspresions
multiplication
Surprise
100
What is 102?
100
100
429x5
2,000
100
3+4x6
27
100
10x3
30
100
Marilyn has 8 pears. She eats 2 pears.
8-2=6
200
105
100000
200
558x44
25,000
200
8~2x3
2
200
2x3
6
300
6x103
6,000
300
34x93
3,000
300
5 divided by 5x7+1
8
300
14x5
60
300
Lee spends $9 on 3 comic books.
9x3=27
400
(5x8)100
40
400
3,699x7
29,000
400
12-(3+4)
5
400
100x3
300
400
Nicky has 4 boxes of markers. Each box contains 8 markers.
4x8=32
500
(9x3)x106
27,000,000
500
678x87
59,000
500
[18 divided by(2x3)]x4
12
500
9,600x4
38,400
500
Al bought 24 stickers. He gave away 11 stickers. Than he bought 8 more stickers.
24-11=13+8=21