Multiply by powers of ten
30 x 101
300
19 x 2
38
20 x 40
800
If my estimation for 20 x 6 was 150, is my answer an overestimation or underestimation?
Overestimation
Favorite color
Pink
41 x 102
29 x 4
116
56 x 34
1,904
Give me an estimation for 36 x 24
ex: 1,000
Favorite subject
Math
80 x 103
80,000
43 x 5
215
342 x 30
10,260
Give me an example of an underestimation for 56 x 22?
ex: 1,100
Favorite store
Target
52 x 104
520,000
57 x 6
342
614 x 38
23, 332
Give me a realistic estimation for 389 x 37
16,000
Favorite soda
sprite or dr.pepper
78 x 105
7,800,000
88 x 9
792
1,789 x 46
82,294
Estimate the area of a wall that measures 1,620 cm by 68 cm.
112,000 cm
Favorite food
spaghetti