简便运算3.75x99+3.75 0.4x63x2.5 2x63.29+2x36.71 0.02x38.7x50 4.9x1.01
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![简便运算3.75x99+3.75 0.4x63x2.5 2x63.29+2x36.71 0.02x38.7x50 4.9x1.01](/uploads/image/z/15103569-57-9.jpg?t=%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%973.75x99%2B3.75+0.4x63x2.5+2x63.29%2B2x36.71+0.02x38.7x50+4.9x1.01)
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简便运算3.75x99+3.75 0.4x63x2.5 2x63.29+2x36.71 0.02x38.7x50 4.9x1.01
简便运算3.75x99+3.75 0.4x63x2.5 2x63.29+2x36.71 0.02x38.7x50 4.9x1.01
简便运算3.75x99+3.75 0.4x63x2.5 2x63.29+2x36.71 0.02x38.7x50 4.9x1.01
3.75x99+3.75
=3.75×(99+1)
=3.75×100
=375
0.4x63x2.5
=0.4×2.5×63
=1×63
=63
2x63.29+2x36.71
=2×(63.29+36.71 )
=2×100
=200
0.02x38.7x50
=0.02×50×38.7
=1×38.7
=38.7
4.9x1.01
=4.9×(1+0.01)
=4.9+0.049
=4.949
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