Question

Calculate using suitable rearrangement a) 31+32+33+34+35+65+66+67+68+69

Answer 1

Answer:

Answer is 500

hope this helps you

please mark as brainlest answer

Answer 2

Answer:

500

Step-by-step explanation:

(30+1)+(30+2)+(30+3)+(30+4)+(30+5)+(60+5)+(60+6)+(60+6)+(60+7)+(60+8)+(60+9)= 500