Add without using number line:
11+(-7)
We can solve it by simply adding them,
11+(-7)=11-7=+4
Hence, the final answer is +4.
Question 3 (a)
Add without using number line: 11 + (–7)
Add without using number line
112+(-128)
(a) 11 + (− 7)
(b) (− 13) + (+18)
(c) (− 10) + (+19)
(d) (− 250) + (+ 150)
(e) (− 380) + (− 270)
(f) (− 217) + (− 100)
(-13)+(+18)