Page 12 - NUMINO Challenge_D1

Basic Concepts Making 100

When numbers from 1 to 9 are arranged in ascending order, you can use
and to form an equation that results in 100, without changing the order of
the numbers.

Example Numbers from 1 to 9 are arranged in ascending order as shown
below. Use only and to form an equation that results in 100.
(You can also put two or more numbers together to make 2-digit
numbers or numbers greater than two digits.)

1 2 3 4 5 6 7 8 9 100

Class Notes

To form an equation that results in 100 using only and , put two numbers together
and make a large number close to 100.

If you put and together, becomes the closest number to 100.

Use the rest of the numbers to make and add it to the number found in question .

Therefore, 12 3 4 5 6 7 89 100.

Try It Again Numbers from 1 to 9 are arranged in ascending order as shown
below. Insert and between the numbers to make the
equation true. (You can also put two or more numbers together
to make 2-digit numbers or numbers greater than two digits.)

1 2 3 4 5 6 7 8 9 55

9Number and Operations