Page 75 - NUMINO Challenge_M1

1. CNouumntbienrg MNuamzebsers and Digits

Counting Numbers
Numbers that increase by 1 such as 5, 6, 7, 8, and 9 are consecutive numbers.

The number of consecutive numbers from 1 to is . 1.
The number of consecutive numbers from to is

Counting Digits

A number is made by using the ten digits, 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 and
using them in different place values.

Hundreds Tens Ones 233
2 3 3 Two Hundred and Thirty Three

233 is made with the digits 2, 3, and 3.
So, there are 3 digits in the number 233.

The number of digits can be found by classifying numbers as 1-digit, 2-digit,
or 3-digit numbers.

EExxpplloorree The number of numbers from 1 to a number is that number.

Numbers from 1 to 12: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
The number of numbers: 12

The number of numbers from A to B is B A 1.

Numbers from 10 to 18: 10, 11, 12, 13, 14, 15, 16, 17, 18
The number of numbers: 18 10 1 9

EExxeerrcciissee Mia wrote the numbers from 1 to 12 in her notebook, and David
wrote from 10 to 22. Who wrote more numbers?

72 NUMINO Challenge M1