Câu hỏi của Yến Hoàng

Question

bỏ dấu ngoặc rồi tính:1)(38-42+14)-(25-27-15)2)(12+21)-(23-21+10)3)(57-725)-(605-53)4)(55+45+15)-(15-55+45)

Hquynh · Accepted Answer

$1,=38-42+14-25+27+15=27$$2,=12+21-23+21-10=21$$3,=57-725-605+53=-1220$$4,=55+45+15-15+55-45=110$Câu trả lời: $1,=38-42+14-25+27+15=27$$2,=12+21-23+21-10=21$$3,=57-725-605+53=-1220$$4,=55+45+15-15+55-45=110$

Đông Hải · Answer

$\text{1.(38-42+14)-(25-27-15)}\
=38-42+14-25+27+15\
=-4-11+42\
=27$$\text{2.(12+21)-(23-21+10)}\
=12+21-23+21-10\
=33+44-10=67$Câu trả lời: $\text{1.(38-42+14)-(25-27-15)}\
=38-42+14-25+27+15\
=-4-11+42\
=27$$\text{2.(12+21)-(23-21+10)}\
=12+21-23+21-10\
=33+44-10=67$

trọng hùng đặng · Answer

1,=38−42+14−25+27+15=271,=38−42+14−25+27+15=272,=12+21−23+21−10=212,=12+21−23+21−10=213,=57−725−605+53=−12203,=57−725−605+53=−12204,=55+45+15−15+55−45=110Câu trả lời: 1,=38−42+14−25+27+15=271,=38−42+14−25+27+15=272,=12+21−23+21−10=212,=12+21−23+21−10=213,=57−725−605+53=−12203,=57−725−605+53=−12204,=55+45+15−15+55−45=110

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