Answer:
Not reasonable. Not reasonable.
Explanation:
1) 39x37=2183 We've been given this product.
Since 37 and 39 is greater than 35, then we can Round it up both to 40. Estimating that product means 40*40=1600. 2183 exceeds 1443. So the first product we've been given it's not a reasonable one.
39x37=2183 (Given)
Rounding up
40 x 40 = 1600
39 x 37 = 1443
Not Reasonable. Because 2183 exceeds the estimation (1600).
2) 27 x 8 = 2241
Since 27 is near to 30, as well as 8 is to 10. Let's round them both up:
30* 10=300
27 x 8 =216
Not Reasonable. Because 2241 exceeds the estimation (300).