Question

a)2+5x7-3x10:10+1x6 ; b)7x9+(15-3)x4+0x(27+28)-1 c)(8+8x8):9-9x(6-6:6):9+3x3x3 ; d)4+4+5x(6x6:6-6)+7-8:8x9

Answer 1

a)
2+5x7-3x10:10+1x6=
2+35-30:10+6=
37-3+6=
34+6=
40


b)
7x9+(15-3)x4+0x(27+28)-1=
63+12x4+0x55-1=
63+48+0-1=
111+0-1=
111-1=
110


c)
(8+8x8):9-9x(6-6:6):9+3x3x3=
(8+64):9-9x(6-1):9+9x3=
72:9-9x5:9+27=
8-45:9+27=
8-5+27=
3+27=
30


d)
4+4+5x(6x6:6-6)+7-8:8x9=
4+4+5x(36:6-6)+7-1x9=
4+4+5x(6-6)+7-9=
4+4+5x0+7-9=
8+0+7-9=
8+7-9=
15-9=
6

Answer 2

a)2+5x7-3x10:10+1x6
= 2+ 35- 30:10+1x6
= 2+35-3+6
=37-3+6
=40
b)7x9+(15-3)x4+0x(27+28)-1
= 7x9+12x4+0x55-1
=63+48+0-1
= 111-1
=110
c) (8+8x8):9-9x(6-6:6):9+3x3x3 =
= 72:9-9x5:9+3x3x3=
=8-9x5:9+3x3x3=
=8-45:9+3x3x3=
=8-5+3x3x3=
=8-5+27=
=3+27
=30
d)4+4+5x(6x6:6-6)+7-8:8x9
=4+4+5x0+7-8:8x9
=4+4+0+7-9
=6