问题 填空题

(1)5.62×□=1.4×□

(2)(1.2×6.3)×□=6.3×(□×5)

(3)(12.5+0.25)×□=□×□○×8

(4)6.3÷0.35÷□=□÷(□○2)

(5)4.9+0.1-0.1+4.9=4.9○4.9○(0.1○0.1)

(6)15.67-2.893-□=15.67-(□○1.893)

答案

(1)5.62×1.4=1.4×5.62;

(2)(1.2×6.3)×5=6.3×(1.2×5);

(3)(12.5+0.25)×8=12.5×8+0.25×8;

(4)6.3÷0.35÷2=6.3÷(0.35×2);

(5)4.9+0.1-0.1+4.9=4.9+4.9+(0.1-0.1);

(6)15.67-2.893-1.893=15.67-(2.893+1.893).

故答案为:1.4,5.62,5,1.2,8,12.5,8,+,0.25,2,6.3,0.35,×,+,+,-,1.893,2.893,+.

单项选择题 共用题干题
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