1. 7,-10, -12,-16, 30 are some numbers.
a. Find the value (-30) - 15.
b. Show the sum of first two numbers by number line.
c. Put the sign '>', '<' or '=' in the blank box:
-45-(-12) |blank box| -60 + (-20).
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Step-by-step explanation:
A boy and a doctor were fishing. The boy is the doctor's son, but the doctor isn't the boy's father. Who is the doctor?
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