脱式计算,能简算的要简算. 5 11 × 7 9 + 7 9 × 6 11
脱式计算,能简算的要简算.511×79+79×61151×10110.25-3.75-6.25+7.7535×12+350÷703+0.7÷[(56-14)×24]13÷...
脱式计算,能简算的要简算. 5 11 × 7 9 + 7 9 × 6 11 51×101 10.25-3.75-6.25+7.75 35×12+350÷70 3+0.7÷[( 5 6 - 1 4 )×24] 1 3 ÷ 6 5 × 9 10 .
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(1)
=(
=1×
=
(2)51×101, =51×(100+1), =51×100+51×1, =5100+51, =5151; (3)10.25-3.75-6.25+7.75, =(10.25+7.75)-(3.75+6.25), =18-10, =8; (4)35×12+350÷70, =420+5, =425; (5)3+0.7÷[(
=3+0.7÷[
=3+0.7÷[20-6], =3+0.7÷14, =3+0.05, =3.05; (6)
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