Question

tính nhanh 23+56+79+144+77+21 trả lời xong kết bạn với mình nhé

Answer 1

(23 + 77) + ( 56 + 144) + ( 79 + 21)

= 100 + 200 + 100

= 400. 

Answer 2

k cho mik nhé! Thanks

Answer 3

23 + 56 + 79 + 144 + 77 + 21

= ( 23 + 21 ) + ( 79 + 77 ) + ( 56 + 144 )

= 44 + 156 + 200

= 200 + 200

= 400

Answer 4

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Answer 5

(23+77)+(144+56)+(79+21)=100+200+100=300

Answer 6

(23+77)+(144+56)+(79+21)=100+200+100=400

Answer 7

=(23+77)+(56+144)+(79+21) =100+200+100 =300+100 =400

Answer 8

23+56+79+144+77+21

=(23+77)+(56+144)+(79+21)

=100+200+100

=400

Answer 9

23 + 56 + 79 +144 +77 +21 = 398

Answer 10

23+56+79+144+77+21= 300

Answer 11

23 + 56 + 79 + 144 + 77 + 21

= ( 23 + 77 ) + ( 56 + 144 ) + ( 79 + 21 )

= 100 + 200 + 100 

= 400

Answer 12

23+56+79+144+77+21

= ( 23+77)+(56+144)+(79+21)

=100 + 200 + 100

= 400