65
55
65
100+80, 99+81, 98+82....
90
The equal sign is the same as the enter button
90 * 12 = 1080
The square root of 81 is: ±9 (9 or -9)A square root is a number which, when multiplied by itself, equals the original number. As 9 x 9 = 81 and -9 x -9 = 81, the answer is plus or minus nine.
125 + 25 - 90 + 35 - 20 = 5
Yes. The answer is......................................................................................................................................................................................................................................................2.
35
-10
90 + 90 + 60 = 240
390
It is 90+90 = 180
What plus 11 equals -5?
54 + 560 + 90 = 704
6 + 90 = 96
42
80 + 10 equals 90 so the missing value is zero, ie 80 + 10 = 90 - 0