Vocab
What does overestimating mean?
a judgement or rough calculation that is too high
11 x 6
66
12 x 15
180
15 x 4
200; overestimating
11 x 29
10 x 30
a judgment or rough calculation that is too low
25 x 8
200
35 x 41
1,435
34 x 9
300; underestimating
58 x 770
60 x 800
numbers that are easy to work with in calculations and equations
43 x 4
172
21 x 83
1,743
58 x 18
1,200; overestimating
642 x 811
600 x 800
Estimating
roughly calculate or judge the value
68 x 3
204
55 x 66
3,630
78 x 24
1,600; underestimating
989 x 12
1,000 x 10
87 x 9
783
79 x 96
7,584
98 x 72
7,000; overestimating
560 x 3,400
600 x 3,000