-0.8+6.4+(-9.2)+3.6+(-1)
请你做小法官,把错误改正过来.(1)4×3.75+0.25=4×4=16=0(2)6.4+3.6×5.3=10×5.3=53(3)15.8-0.8×2=15×2=30(4...
请你做小法官,把错误改正过来.
(1)4×3.75+0.25
=4×4
=16
=0
(2)6.4+3.6×5.3
=10×5.3
=53
(3)15.8-0.8×2
=15×2
=30
(4)4.5×0.9+6.8
=4.05+6.8
=4.73. 展开
(1)4×3.75+0.25
=4×4
=16
=0
(2)6.4+3.6×5.3
=10×5.3
=53
(3)15.8-0.8×2
=15×2
=30
(4)4.5×0.9+6.8
=4.05+6.8
=4.73. 展开
1个回答
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(1)4×3.75+0.25
=4×4
=16
=0(×)
改正:4×3.75+0.25
=15+0.25,
=15.25;
(2)6.4+3.6×5.3
=10×5.3
=53(×)
改正:6.4+3.6×5.3
=6.4+19.08
=25.48;
(3)15.8-0.8×2
=15×2
=30(×)
改正:15.8-0.8×2
=15.8-1.6,
=14.2;
(4)4.5×0.9+6.8
=4.05+6.8
=4.73.(×)
改正:4.5×0.9+6.8
=4.05+6.8
=10.85.
=4×4
=16
=0(×)
改正:4×3.75+0.25
=15+0.25,
=15.25;
(2)6.4+3.6×5.3
=10×5.3
=53(×)
改正:6.4+3.6×5.3
=6.4+19.08
=25.48;
(3)15.8-0.8×2
=15×2
=30(×)
改正:15.8-0.8×2
=15.8-1.6,
=14.2;
(4)4.5×0.9+6.8
=4.05+6.8
=4.73.(×)
改正:4.5×0.9+6.8
=4.05+6.8
=10.85.
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