1.\(=56+47-56+53-40\)
\(=\left(56-56\right)+\left(47+53\right)-40\)
\(=0+100-40=60\)
2.\(34+59-34+41+100\)
\(=\left(34-34\right)+\left(59+41\right)+100\)
\(=0+100+100=200\)
3.\(=109+34-109+66-10\)
\(=\left(109-109\right)+\left(34+66\right)-10\)
\(=0+100-10=90\)

56.(66-19)-6.(56-19)

=56. 47-6.37

=2632-222

=2410

không có cách tính hợp lý . k cho tớ nha

kết quả là 2410

éo k đấy làm j đc nhau

=4891

=4962

=4891 nha!

nhớ k cho mình lúc nào mình k lại cho!

56*4+56*3+56*2+56

=56*4+56*3+56*2+56*1

=56*(4+3+2+1)

=56*10

=560

đáp án quá dễ là 560 chứ gì

224+168+112+56

=392+168

=560

56 x ( 4 + 3+ 2 + 1 )

56 x 10

560

=56*4+56*3+56*2+56*1

=56*[4+3+2+1]

=56*10

=560

cho mình xin ít coin nhé

tính nhanh à !

98 + 56 = 154

35 + 96 = 131

56 + 66 = 122

64 + 59 = 123

98+56=154

35+96=131

56+66=122

64+59=123

98 + 56 = 154

35 + 96 = 131

56 + 66 = 122

64 + 59 = 123

T...i....c...h    n...h...a

1: =66+34-73-27+99=99

2: =54-45+30-54-30+5=-40

3: =42-56+33-33+56-42=0

4: =50-47-50+18+47-18=0

5: =10-28+30-4=2-4+10=12-4=8

\(\text{1.-(-66)+34+(-73)-27+99}.\)

\(=66+34-73-27+99=100-100+99=-99.\)

\(\text{2.54-(45-30+54)-30+5}.\)

\(54-45+30-54-30+5=\left(54-54\right)+\left(-45+5\right)+\left(30-30\right)=-40.\)

\(\text{3.42-56+33-(33-56+42)}.\)

\(=42-56+33-33+56-42=\left(42-42\right)+\left(-56+56\right)+\left(33-33\right)=0.\)

\(\text{4.50-(47+50-18)+(47-18)}.\)

\(=50-47-50+18+47-18=\left(50-50\right)+\left(-47+47\right)+\left(18-18\right)=0.\)

\(\text{5.10-(28-30+4)}.\)

\(=10-28+30-4=10+30-20-8-4=20-12=8.\)

\(\text{6.-(-73)+(44-94+27)+94}.\)

\(=73+44-94+27+94=\left(73+27\right)+\left(-94+94\right)+44=100+44=144.\)