300–(300x40%)
=180
300–(300x12%)
=264
4
5
= 625
1 / 2 = 0.5
1
= 0.125
(2
x
5
-
2)
= 12
144
(–6) + 4 + 7.5
= 5.5
3 – 6 – 4 = –7
300 [–] 40 [%]
12 [%]
5 [x] [=] [=] [=]
1 [÷] 2 [=] or
2 [÷] [=]
2 [x] 5 [–] 2 [÷] [=]
144 [
]
x
6 [+/–] [+] 4 [+] 7.5
[=]
3 [–] 6 [–] 4 [=]
- 4 -
180.
%
264.
%
625. =
0.5 =
0.125 =
12.
5.5 =
–7. =
