Question

 SỐ 3 : TÍNH NHANH

A =  [ - 506 + 732 - ( - 2000) ]  - ( 506 - 1732 )

B = 38 + 41 + 117 +  159 + 62 

C = 73 + 86 + 968 + 914 + 3032

D = 123 x 456456 - 456 x 123123

E = ( 98 x 7676 - 9898 x 76 ) : ( 2001 x 2002 x 2003 ...... 2009 )

F = 1000 x ( 456 x 789789 - 789 x 456456 )

M = 1031 + { [ 743 - [ 1031 -  ( + 57 ) ] }

Answer 1

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Answer 2

A = [ -506 + 732 - ( -2000 )] - ( 506 - 1732 )

A = [ 226 - ( -2000 )] - ( 506 - 1732 )

A = 2226 - ( -1226 )

A = 3452

B = 38 + 41 + 117 + 159 + 62

B = ( 38 + 62 ) + (41 + 159) + 117

B = 100 + 200 + 117

B = 417

C = 73 + 86 + 968 + 914 + 3032

C = ( 86 + 914 ) + ( 968 + 3032 ) + 73

C = 1000 + 4000 + 73

C = 5073

D = 123 x 456456 - 456 x 123123

D = 123x456x1001-456x123x1001

D = 56088 x 1001 - 56088 x 1001

D = 1001x ( 56088 - 56088 )

D = 1001 x 0

D = 0

F = 1000 x ( 456 x 789789 -789 x 456456 )

F = 1000 x 0

F =0

Answer 3

A = [ -506 + 732 - ( -2000 )] - ( 506 - 1732 )

A = [ 226 - ( -2000 )] - ( 506 - 1732 )

A = 2226 - ( -1226 )

A = 3452

B = 38 + 41 + 117 + 159 + 62

B = ( 38 + 62 ) + (41 + 159) + 117

B = 100 + 200 + 117

B = 417

C = 73 + 86 + 968 + 914 + 3032

C = ( 86 + 914 ) + ( 968 + 3032 ) + 73

C = 1000 + 4000 + 73

C = 5073

D = 123 x 456456 - 456 x 123123

D = 123x456x1001-456x123x1001

D = 56088 x 1001 - 56088 x 1001

D = 1001x ( 56088 - 56088 )

D = 1001 x 0

D = 0

F = 1000 x ( 456 x 789789 -789 x 456456 )

F = 1000 x 0

F =0

TK nha