
用简便方法计算:73+3.4+27+5.6 &n...
用简便方法计算:73+3.4+27+5.67.25-3.42-1.58362×4+238×44300÷25÷4....
用简便方法计算:73+3.4+27+5.6 7.25-3.42-1.58362×4+238×4 4300÷25÷4.
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(1)73+3.4+27+5.6
=73+27(3.4+5.6)
=100+9
=109;
(2)7.25-3.42-1.58
=7.25-(3.42+1.58)
=7.25-5
=2.25;
(3)362×4+238×4
=(362+238)×4
=600×4
=2400;
(4)4300÷25÷4
=4300÷(25×4)
=4300÷100
=43.
=73+27(3.4+5.6)
=100+9
=109;
(2)7.25-3.42-1.58
=7.25-(3.42+1.58)
=7.25-5
=2.25;
(3)362×4+238×4
=(362+238)×4
=600×4
=2400;
(4)4300÷25÷4
=4300÷(25×4)
=4300÷100
=43.
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