Skillfully calculate 46 + 32 + 54 546 + 785-146 0.7 + 3.9 + 4.3 + 6.1 25 * 49 * 48 * (36 * 125) 8 * 4 * 12.5 * 0.25 2.7 * 4.8 + 2.7 * 5.2 905*99+905 13*10.2

Skillfully calculate 46 + 32 + 54 546 + 785-146 0.7 + 3.9 + 4.3 + 6.1 25 * 49 * 48 * (36 * 125) 8 * 4 * 12.5 * 0.25 2.7 * 4.8 + 2.7 * 5.2 905*99+905 13*10.2

46+32+54=54+46+32=100+32=132 546+785-146=546-146+785=400+785=1185 0.7+3.9+4.3+6.1=4.3+0.7+3.9+6.1=5+10=15 25*49*4=25*4*49=100*49=4900 8* （36*125）=8*125*36=1000*36=36000 8*4*12.5*0.25=12.5*8*4*0.25=1...

The calculation is: 36 + 61.2 △ 12 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; (20-1.4 △ 2) × 0.4 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 54 △ 3.94 + 6.86) × 0.8

①36+61.2÷12 =36+61.2÷12 =36+5.1=41.1②（20-1.4÷2）×0.4 =（20-0.7）×0.4=19.3×0.4=7.72③54÷（3.94+6.86）×0.8=54÷10.8×0.8=5×0.8=4