(1)76.9÷10+2.3= (2)(5.002-4.002)3.002= (3)(2.480-2.2)x5.989= (4)2.00x4.00+50.0x1.00-20x0.1=
(2)72.347+5.32-0.137= (3)8.793x3.5÷200= (4)8.7x102-1.7x101
(1)68.457+236.51-9.753=