问题
解答题
脱式计算.
800-120×6
(515+206)÷7
240×4+210
950÷5÷2.
答案
(1)800-120×6,
=800-720,
=80;
(2)(515+206)÷7,
=721÷7,
=103;
(3)240×4+210,
=960+210,
=1170;
(4)950÷5÷2,
=950÷(5×2),
=950÷10,
=95.
脱式计算.
800-120×6
(515+206)÷7
240×4+210
950÷5÷2.
(1)800-120×6,
=800-720,
=80;
(2)(515+206)÷7,
=721÷7,
=103;
(3)240×4+210,
=960+210,
=1170;
(4)950÷5÷2,
=950÷(5×2),
=950÷10,
=95.