4.6×12+4.6×21+33×5.4简便运算
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4.6×12+4.6×21+33×5.4简便运算
4.6×12+4.6×21+33×5.4简便运算
4.6×12+4.6×21+33×5.4简便运算
4.6×(12+21)+33 ×5.4
=4.6×33+33 ×5.4
=(4.6+5.4)×33
=330
4.6×12+4.6×21+33×5.4=(4.5×12+1.2)+(4.5×21+2.1)+33×5.4
=4.5×33+3.3+33×5.4=9.9×33+3.3=10×33=33 0
=4.6(12+21)+33×5.4
=4.6×33+33×5.4
=33×(4.6+5.4)
=33×10=330
原式=4.6x(12+21)+33x5.4
=4.6*33+33*5.4
=33*(4.6+5.4)
=330
=4.6×(12+21)+33×5.4=4.6×33+33×5.4=33×(4.6+5.4)=33×10=330
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