Page 100 - NUMINO Challenge_D1
P. 100
Problem solving Key Points
1 If you can climb 1 or 2 steps of a 10-step ladder To get to the 3rd
at a time, how many ways are there to reach the step, you can move
top? 2 steps from the 1st
step, or 1 step from
the 2nd step.
2 A bee wants to move from 1 to 7 . Each time The 2 ways to move
from 1 to 3 are:
the bee moves, it can only move adjacently to a 1 3 or 1 2 3.
greater number. How many ways are there for the
bee to move to 7 ?
1357
246
97Number Theory
1 If you can climb 1 or 2 steps of a 10-step ladder To get to the 3rd
at a time, how many ways are there to reach the step, you can move
top? 2 steps from the 1st
step, or 1 step from
the 2nd step.
2 A bee wants to move from 1 to 7 . Each time The 2 ways to move
from 1 to 3 are:
the bee moves, it can only move adjacently to a 1 3 or 1 2 3.
greater number. How many ways are there for the
bee to move to 7 ?
1357
246
97Number Theory
