脱式计算. (60+80)÷7 894-60×3 6×29×5 905-150×4 168×5÷6 735÷7÷3

2020-06-25 社会 103阅读
(1)(60+80)÷7,
=140÷7,
=20;

(2)894-60×3,
=894-180,
=714;

(3)6×29×5,
=6×5×29,
=30×29,
=870;

(4)905-150×4,
=905-600,
=305;

(5)168×5÷6,
=840÷6,
=140;

(6)735÷7÷3,
=105÷3,
=35.
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