10 + 10 + 10 + 5 + 5 +1 = 41.
10 X 10 = 100 You can do this four ways: You can do it mentally in your head or you can add them all up on paper by lining up the numbers correctly with each other. You can use a calculator and that is the easiest way. An alternate way is to multiply 10 by 10.
10 + 10 + 10 = 30
18 + 10 + 28 + 10 = 66
A plus
700.
10 + 10 + 10 + 10 + 10 + 10 + 10 + 108 = 178
10 + 10 + 10 + 10 + 10 = 50
10 + 10 + 10 + 10 + 10 + 10 = 60 10 X 6 = 60
10 + 10 + 10 + 10 = 40
25+10+10+10+1+1= 57
10 + 10 + 10 + 5 + 5 +1 = 41.
10 X 10 = 100 You can do this four ways: You can do it mentally in your head or you can add them all up on paper by lining up the numbers correctly with each other. You can use a calculator and that is the easiest way. An alternate way is to multiply 10 by 10.
48 plus 22 plus 10 plus 10 plus 9 plus 1 is equal to 100.
2 and a half plus 2 and a half plus 10 plus 10 = 25
10 + 10 + 10 = 30
25 as 10+10 is 20 plus 5 is 25