adding
=2
1-1
0
= 1
40 + (2x2) - 2
42
1 2 3 4 5
what the Pattern rule
+1
70+30
=100
100-60-30
10 x 10 / 5
= 20
10 + ( 30 + 20 ) + 39 + 1
= 100
5 10 15 20 25
what the Pattern rule
+ 6 - 1
60+9
69
70-1
=69
15x23/5
=69
(69+1) - 1
69
1 70 139
what the Pattern rule
+ 69
440+-20
=420
60-80--10
100 x 5 /5
= 100
(100 / 5 ) +5 -15 + 45 x 2
=100
10 20 30 40 50
what the Pattern rule
+ 20 - 10
1+-1
= 0
+1-+1
0
1 / 1
=1
(1+1) + (1+1)
=4
0.1 0.2 0.3 0.4 0.5
what the Pattern rule
+ 0.1