简算34.17×990+341.7

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简算34.17×990+341.7简算34.17×990+341.7简算34.17×990+341.734.17×990+341.7=34.17×990+34.17×10=34.17×(990+10)

简算34.17×990+341.7
简算34.17×990+341.7

简算34.17×990+341.7
34.17×990+341.7
=34.17×990+34.17×10
=34.17×(990+10)
=34.17×1000
=34170

还可以
34.17*990+341.7
=341.7*99+341.7
=341.7*100
=34170

34.17×990+341.7
=34.17×990+34.17*10
=34.17×(990+10)
=34.17×1000
=34170