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