Seven times the sum of its digits – Artofit

Image gallery for: Seven times the sum of its digits

Seven Times the Sum of Its Digits

Which two-digit numbers are exactly equal to seven times the sum of its digits?
Advertisement
Teaching (ingenio)
who?

IQ
50 Math Brain Teasers To Puzzle Even Your Smartest Students

Teambuilders
Innovation - Numeracy
Advertisement
Noetic Learning Math Contest

quantitative
Brain Training Puzzles: Count the Number of Sticks

Nandana
Math
What Mathematical Symbol Can Be Placed Between 5 And 9

Teaching 2.0
Puzzle Calendars – Mathigon

Math riddles brain teasers
Wrong Seat Probability

Maths ideas
|X| Μαθηματικά √
Advertisement
Advertisement
Advertisement
Rätsel