分析:①先算除法,再算減法;
②先算除法,再算減法,最后算乘法;
③根據(jù)加法交換律和結(jié)合律進(jìn)行計(jì)算;
④先算減法,再算乘法,最后算除法;
⑤根據(jù)乘法分配律進(jìn)行計(jì)算;
⑥根據(jù)乘法分配律進(jìn)行計(jì)算.
解答:解:
①10962÷54-105,
=203-105,
=98;
②0.25×(4.8-7.5÷3),
=0.25×(4.8-2.5),
=0.25×2.3,
=0.575;
③0.65+2
+6.35+
,
=(0.65+6.35)+(2
+
),
=7+3,
=10;
④
×
÷(
-
),
=
×
÷
,
=
÷
,
=
;
⑤9.07×93-9.07+9.07×8,
=9.07×(93-1+8),
=9.07×100,
=907;
⑥0.125×(5+0.8)+0.125÷
,
=0.125×5+0.125×0.8+0.125×3,
=0.125×5+0.125×3+0.125×0.8,
=0.125×(5+3)+0.1,
=0.125×8+0.1,
=1+0.1,
=1.1.
點(diǎn)評:四則運(yùn)算,先弄清運(yùn)算順序,然后再進(jìn)一步計(jì)算,能簡算的要簡算.