57.5
115
6000 * 230 = 1,380,000 is reasonable. 23*5 = 115 so 23*6 = 115+23 = 138 and append the appropriate number of zeros. The exact anser is 1,393,131.
115 plus 115 = 230
1 × 115 = 115 5 × 23 = 115
4.86 and divide2 = 2.43
6
57.5
No need to estimate. The true answer is 345
It is (32+32)/2 = 32
431-115
115
45 + 70 ( rounding ) = 115... 67+85=
Lady Gaga has been interviewed (estimate) 115 times.
There are 1.609344 kilometres in one mile.To find the answer divide 11.5 by 1.609344. (or 1.6 for a rough estimate)The answer is 11.5 km is equal to 7.145769 miles.
6000 * 230 = 1,380,000 is reasonable. 23*5 = 115 so 23*6 = 115+23 = 138 and append the appropriate number of zeros. The exact anser is 1,393,131.
115 plus 115 = 230