вычислите : 78*0+25*3=... (27+13)*2-78=... 39:(7+6)*21=... 81-68:(9+8)=...
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вычислите : 78*0+25*3=... (27+13)*2-78=... 39:(7+6)*21=... 81-68:(9+8)=...
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78*0+25*3= 0+75=75
(27+13)*2-78= 40*2-78=80-78= 2
39:(7+6)*21=39:13*21=13*21= 273
81-68:(9+8)= 81-68:17=81-4= 77
78 * 0+25*3=0+75=75
(27+13)*2-78=40 *2-78=80-78=2
39:(7+6)*21=39:13 *21=3 *21=63
81-68:(9+8)=81-68:17=81-4=77