Page 102 - NUMINO Challenge_D1
P. 102
Problem solving
1 There is a type of bacteria that changes as the Key Points
temperature rises, according to the following
rules. If 1 is put in a box, how many bacteria Draw pictures to
will there be after 8 minutes? find the number of
Rules bacteria per minute.
1. A changes into after 1 minute.
2. A splits into a and after 1 minute.
2 Squares are drawn in a pattern as shown below. Write out the lengths
If the 1st square has sides of 2 cm each, how of the sides of each
long is the side of the 9th square? square in a number
sequence.
2 cm
1st 2nd 3rd 4th
99Number Theory
1 There is a type of bacteria that changes as the Key Points
temperature rises, according to the following
rules. If 1 is put in a box, how many bacteria Draw pictures to
will there be after 8 minutes? find the number of
Rules bacteria per minute.
1. A changes into after 1 minute.
2. A splits into a and after 1 minute.
2 Squares are drawn in a pattern as shown below. Write out the lengths
If the 1st square has sides of 2 cm each, how of the sides of each
long is the side of the 9th square? square in a number
sequence.
2 cm
1st 2nd 3rd 4th
99Number Theory
