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用简便的方法计算;①283-47-153②842-368-132③273-98④267+153+433⑤782-216-184⑥472-127-123.
题目详情
用简便的方法计算; ①283-47-153 ②842-368-132 ③273-98 ④267+153+433 ⑤782-216-184 ⑥472-127-123. |
①283-47-153 ②842-368-132 ③273-98
④267+153+433 ⑤782-216-184 ⑥472-127-123.
①283-47-153 ②842-368-132 ③273-98
④267+153+433 ⑤782-216-184 ⑥472-127-123.
①283-47-153 ②842-368-132 ③273-98
④267+153+433 ⑤782-216-184 ⑥472-127-123.
①283-47-153 ②842-368-132 ③273-98
④267+153+433 ⑤782-216-184 ⑥472-127-123.
▼优质解答
答案和解析
①283-47-153
=283-(47+153)
=283-200
=83;
②842-368-132
=842-(368+132)
=842-500
=342;
③273-98
=273-(100-2)
=273-100+2
=175;
④267+153+433
=267+433+153
=700+153
=853;
⑤782-216-184
=782-(216+184)
=782-400
=382;
⑥472-127-123
=472-(127+123)
=472-250
=222;
故答案为83;342;175;853;382;222. ①283-47-153
=283-(47+153)
=283-200
=83;
②842-368-132
=842-(368+132)
=842-500
=342;
③273-98
=273-(100-2)
=273-100+2
=175;
④267+153+433
=267+433+153
=700+153
=853;
⑤782-216-184
=782-(216+184)
=782-400
=382;
⑥472-127-123
=472-(127+123)
=472-250
=222;
故答案为83;342;175;853;382;222. ①283-47-153
=283-(47+153)
=283-200
=83;
②842-368-132
=842-(368+132)
=842-500
=342;
③273-98
=273-(100-2)
=273-100+2
=175;
④267+153+433
=267+433+153
=700+153
=853;
⑤782-216-184
=782-(216+184)
=782-400
=382;
⑥472-127-123
=472-(127+123)
=472-250
=222;
故答案为83;342;175;853;382;222. ①283-47-153
=283-(47+153)
=283-200
=83;
②842-368-132
=842-(368+132)
=842-500
=342;
③273-98
=273-(100-2)
=273-100+2
=175;
④267+153+433
=267+433+153
=700+153
=853;
⑤782-216-184
=782-(216+184)
=782-400
=382;
⑥472-127-123
=472-(127+123)
=472-250
=222;
故答案为83;342;175;853;382;222.
①283-47-153 =283-(47+153) =283-200 =83; ②842-368-132 =842-(368+132) =842-500 =342; ③273-98 =273-(100-2) =273-100+2 =175; ④267+153+433 =267+433+153 =700+153 =853; ⑤782-216-184 =782-(216+184) =782-400 =382; ⑥472-127-123 =472-(127+123) =472-250 =222; 故答案为83;342;175;853;382;222. |
=283-(47+153)
=283-200
=83;
②842-368-132
=842-(368+132)
=842-500
=342;
③273-98
=273-(100-2)
=273-100+2
=175;
④267+153+433
=267+433+153
=700+153
=853;
⑤782-216-184
=782-(216+184)
=782-400
=382;
⑥472-127-123
=472-(127+123)
=472-250
=222;
故答案为83;342;175;853;382;222.
=283-(47+153)
=283-200
=83;
②842-368-132
=842-(368+132)
=842-500
=342;
③273-98
=273-(100-2)
=273-100+2
=175;
④267+153+433
=267+433+153
=700+153
=853;
⑤782-216-184
=782-(216+184)
=782-400
=382;
⑥472-127-123
=472-(127+123)
=472-250
=222;
故答案为83;342;175;853;382;222.
=283-(47+153)
=283-200
=83;
②842-368-132
=842-(368+132)
=842-500
=342;
③273-98
=273-(100-2)
=273-100+2
=175;
④267+153+433
=267+433+153
=700+153
=853;
⑤782-216-184
=782-(216+184)
=782-400
=382;
⑥472-127-123
=472-(127+123)
=472-250
=222;
故答案为83;342;175;853;382;222.
=283-(47+153)
=283-200
=83;
②842-368-132
=842-(368+132)
=842-500
=342;
③273-98
=273-(100-2)
=273-100+2
=175;
④267+153+433
=267+433+153
=700+153
=853;
⑤782-216-184
=782-(216+184)
=782-400
=382;
⑥472-127-123
=472-(127+123)
=472-250
=222;
故答案为83;342;175;853;382;222.
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