8470-(100×65+4×65) =8470-(6500+260) =8470-6760 =1710 (1.3+9.7)-(3.79+6.21) =11-10 =1 3.64×1/4+4.36×1/4 =1/4×(3.64+4.36) =1/4×8 =2 3/8(8.4-1)+2又3/5×5/8 =3/8×7.4+2又3/8 =3/8(7.4+2) =131/40 这道题不完整
8470—104×65 1.3—3.79+9.7—6.21 3.64÷4+4.36×0.25 3/8×8.4+2又3/5
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怎样简便就怎样算.(1)8470-104×65 (2)1.3-3.79+9.7-6.21(3)3.64÷4+4.36×0
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递等式计算(带▲的要简算)8470-104×65▲3.64÷4+4.36×0.25 &
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0.8×8.9×1.25-3.45-4.65 7又1/4×97+7.25÷1/4-7又1/4 还有一道