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Question

Thực hiện các phép tính sauc) 2317 +346-317+54a)938+172-38-72b) 763-27-73d) 382 +181-82+119

HT.Phong (9A5) · Accepted Answer

a) $2317+346-317+54$$=\left(2317-317\right)+\left(346+54\right)$$=2000+400$$=2400$b) $938+172-38-72$$=\left(938-38\right)+\left(172-72\right)$$=900+100$$=1000$c) $763-27-73$$=763-100$$=663$d) $382+181-82+119$$=\left(382-82\right)+\left(181+119\right)$$=300+300$$=600$Câu trả lời: a) $2317+346-317+54$$=\left(2317-317\right)+\left(346+54\right)$$=2000+400$$=2400$b) $938+172-38-72$$=\left(938-38\right)+\left(172-72\right)$$=900+100$$=1000$c) $763-27-73$$=763-100$$=663$d) $382+181-82+119$$=\left(382-82\right)+\left(181+119\right)$$=300+300$$=600$

vũ tô bình phương · Answer

a) 2317+346−317+542317+346−317+54=(2317−317)+(346+54)=(2317−317)+(346+54)=2000+400=2000+400=2400=2400b) 938+172−38−72938+172−38−72=(938−38)+(172−72)=(938−38)+(172−72)=900+100=900+100=1000=1000c) 763−27−73763−27−73=763−100=763−100=663=663d) 382+181−82+119382+181−82+119=(382−82)+(181+119)=(382−82)+(181+119)=300+300=300+300=600Câu trả lời: a) 2317+346−317+542317+346−317+54=(2317−317)+(346+54)=(2317−317)+(346+54)=2000+400=2000+400=2400=2400b) 938+172−38−72938+172−38−72=(938−38)+(172−72)=(938−38)+(172−72)=900+100=900+100=1000=1000c) 763−27−73763−27−73=763−100=763−100=663=663d) 382+181−82+119382+181−82+119=(382−82)+(181+119)=(382−82)+(181+119)=300+300=300+300=600

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