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我是计算小能手(怎么简便就怎么算):34+15+66;8×(125×15);(4+400)×25;156×63+156×37;282+47+153+18;756-193-207;395-(72+95);600÷25÷4.
题目详情
我是计算小能手(怎么简便就怎么算):
34+15+66; | 8×(125×15); |
(4+400)×25; | 156×63+156×37; |
282+47+153+18; | 756-193-207; |
395-(72+95); | 600÷25÷4. |
▼优质解答
答案和解析
(1)34+15+66
=34+66+15
=100+15
=115;
(2)8×(125×15)
=(8×125)×15
=1000×15
=15000;
(3)(4+400)×25
=4×25+400×25
=100+10000
=10100;
(4)156×63+156×37
=156×(63+37)
=156×100
=15600;
(5)282+47+153+18
=282+18+(47+153)
=300+200
=500;
(6)756-193-207
=756-(193+207)
=756-400
=356;
(7)395-(72+95)
=395-95-72
=300-72
=228;
(8)600÷25÷4
=600÷(25×4)
=600÷100
=6.
=34+66+15
=100+15
=115;
(2)8×(125×15)
=(8×125)×15
=1000×15
=15000;
(3)(4+400)×25
=4×25+400×25
=100+10000
=10100;
(4)156×63+156×37
=156×(63+37)
=156×100
=15600;
(5)282+47+153+18
=282+18+(47+153)
=300+200
=500;
(6)756-193-207
=756-(193+207)
=756-400
=356;
(7)395-(72+95)
=395-95-72
=300-72
=228;
(8)600÷25÷4
=600÷(25×4)
=600÷100
=6.
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