试题与答案

25×8×2=50×50-500=70-2×18=140×2-180=0×78×

题型:解答题

题目:

25×8×2=50×50-500=70-2×18=
140×2-180=0×78×78=

答案:

(1)25×8×2,

=200×2,

=400;

(2)50×50-500,

=2500-500,

=2000;

(3)70-2×18,

=70-36,

=34;

(4)140×2-180,

=280-180,

=100;

(5)0×78×78=0.

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