Page 31 - NUMINO Challenge_C2
P. 31
Type 3-2 Applications of Divisibility Rules
Ben’s family uses three bars of soap every month. They used 17,2 0
store points on soap last year. Find the digit for .
Month Jan Feb Mar Apr Dec Total
Item 33
Soap 3 3 3 17,200
Store
Point
1 How many bars of soap does Ben’s family use in a year?
2 The number of store points needed to buy one bar of soap is a multiple of
36, which is the number of bars of soap used by Ben’s family in a year.
Multiples of 36 are also multiples of both 4 and 9. Find all the digits that
make 17,2 0 a multiple of 4.
3 Among the digits found in 2 , find the digits that make 17,2 0 a multiple
of 9.
4 If 13,7 6 store points are used on soap in a year, how many store points
are needed to buy a bar of soap?
28 NUMINO Challenge C2
Ben’s family uses three bars of soap every month. They used 17,2 0
store points on soap last year. Find the digit for .
Month Jan Feb Mar Apr Dec Total
Item 33
Soap 3 3 3 17,200
Store
Point
1 How many bars of soap does Ben’s family use in a year?
2 The number of store points needed to buy one bar of soap is a multiple of
36, which is the number of bars of soap used by Ben’s family in a year.
Multiples of 36 are also multiples of both 4 and 9. Find all the digits that
make 17,2 0 a multiple of 4.
3 Among the digits found in 2 , find the digits that make 17,2 0 a multiple
of 9.
4 If 13,7 6 store points are used on soap in a year, how many store points
are needed to buy a bar of soap?
28 NUMINO Challenge C2
