Question

Exercise 3.7
A. Find the right answer with the help of number grid.
Five less
Five more
Ten less
Ten more
(-5)
(+5)
(-10)
(+10)
12
16
20
19
23
21
32
36
46
41
53
50
66
59
72
69
80
89
the number grid​

Answer 1

Answer:

$7 - 3 \times 33 \\ \\ \\ 2 = 6951 {221}^{2}$

formula