问题 解答题

脱式计算

60×7+148

550÷5×2

801÷(3×3)

157-23×4

78÷3÷2

(183+246)÷3.

答案

(1)60×7+148

=420+148

=568;

(2)550÷5×2

=110×2

=220;

(3)801÷(3×3)

=801÷9

=89;

(4)157-23×4

=157-92

=65;

(5)78÷3÷2

=78÷(3×2)

=78÷6

=13;

(6)(183+246)÷3

=183÷3+246÷3

=61+82

=143.

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