Mathematics
语言:
中文
Language:English
==equ==
Unary equation
Multivariate equation
==cal==
Solution inequality
Mathematical calculation
Fractional calculation
Mathematical statistics
Resolving prime factor
Fraction and Decimal Interactions
Lenders ToolBox
==LiAl==
Determinant
Matrix multiplication
Inverse matrix
==der==
Derivative function
==img==
Function image
==que==
Q&A
current location:Mathematical operation > History of Mathematical Computation
170-480= 780-280= 340-380= 120+680= 260+380= 400+680= 900-780= 780-160= 640-480=
400+580= 200+480= 300+480= 800-580= 700-480= 700-380= 120+380= 400+280= 460+380=
220+190= 260+430= 450+690=
600+190= 480-270= 460+490= 200+590= 240 + 350= 370-320= 500+210= 520-510= 680-590= 220+190= 260+430= 450+690=
500+590= 520-290= 580-490= 1280+590= 560+390= 300+690= 800-490= 700-490= 540-490=
700-290= 680-170= 440-290= 500+140= 380-270= 660+390= 700+390= 240-250= 370-390=
220+690= 360+190= 200+690=
600+180= 180-170= 260+490= 700+890= 240-150= 470-390= 500+990= 520-490= 180-190= 220+690= 360+190= 200+690=
490-170= 780-290= 340-390= 120+690= 260+390= 400+690= 900-790= 780-170= 640-490=
400+590= 200+490= 300+490= 800-590= 700-490= 700-390= 120+390= 400+290= 460+390=
220+300= 260+140= 450+400=
600+300= 480-380= 460+200= 200+300= 240 + 60= 370-30= 500+320= 520-120= 680-300= 220+300= 260+140= 450+400=
500+300= 520-400= 580-200= 1280+300= 560+100= 300+400= 800-200= 700-200= 540-200=
700-400= 680-280= 440-400= 500+250= 380-280= 660+100= 700+100= 440-360= 370-100=
220+400= 360+300= 200+400=
600+290= 380-280= 260+600= 700+600= 440-260= 470-100= 500+700= 520-200= 380-300= 220+400= 360+300= 200+400=
970-200= 780-400= 340-100= 120+400= 260+100= 400+400= 900-500= 780-280= 640-200=
400+300= 200+200= 300+200= 800-300= 700-200= 700-400= 120+100= 400+400= 460+100=
310+100= 350+340= 540+600=
690+100= 570-180= 550+400= 290+500= 330 + 260= 460-230= 590+120= 610-420= 770-500= 310+100= 350+340= 540+600=
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