236704128 790
93 to the nearest tens = 90
390
907.457 rounded off to nearest tens place is 910. If it were asked to round off to nearest "tenths" place, it would have been 907.5.
1.145 rounded to the nearest tens is zero. To the nearest tenths it is 1.1
950
It is: 90
It is: 150
1070
150
2941
It is: 450