Question

Find the sum of the first 20 multiples of 9

Answer 1

Answer:

The multiples are

9,18,27,36,45,54,63,72,81,90,99,109,118,127,136,145,154,163,172,181,190

Answer 2

9×1=9

9×2=18

9×3=27

9×4=36

9×5=45

9×6=54

9×7=63

9×8=72

9×9=81

9×10=90

9×11=99

9×12=108

9×13=117

9×14=126

9×15=135

9×16=144

9×17=153

9×18=162

9×19=171

9×20=180