题目内容
脱式计算.
840÷4÷7 | (200+402)÷7 | 65×(788-768) | 16×34÷8. |
分析:(1)按照从左向右的顺序进行计算;
(2)先算加法,再算除法;
(3)先算减法,再算乘法;
(4)按照从左向右的顺序进行计算.
(2)先算加法,再算除法;
(3)先算减法,再算乘法;
(4)按照从左向右的顺序进行计算.
解答:解:
(1)840÷4÷7,
=210÷7,
=30;
(2)(200+402)÷7,
=602÷7,
=86;
(3)65×(788-768),
=65×20,
=1300;
(4)16×34÷8,
=544÷8,
=68.
(1)840÷4÷7,
=210÷7,
=30;
(2)(200+402)÷7,
=602÷7,
=86;
(3)65×(788-768),
=65×20,
=1300;
(4)16×34÷8,
=544÷8,
=68.
点评:此题主要考查整数的四则混合运算的运算顺序,然后再根据计算顺序进行计算.
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