Knitting needles

This task is about continuing number patterns and finding a rule.
illustration: wool and needles for knitting
The conversion chart below shows the diameters of various size knitting needles and the numbers of the needles in 2 different systems, English and United States. Unfortunately, baby Sarah scribbled over the table, and some of the figures can't be read.
table showing some numbers scribbled over

Question 1Change answer

a)  Fill in the table below to complete the 6 missing entries.
Diameter in mm 2.0 2.4 3.6 4.0
English number 13 12 9 8
U.S. number 0 1 2 5

Question 1Change answer

b) What is the diameter of a U.S. number 7 needle?  mm

Question 2Change answer

c)  What is the English number of a needle with diameter 5.6 mm?

Question 3Change answer

d)  Complete the following statement to show the rule for converting from the English number to the U.S. number.
The rule is:  – English number = U.S. number
Published on https://newzealandcurriculum.tahurangi.education.govt.nz