Page 18 - NUMINO Challenge_A1
P. 18
Problem solving Key Points

1 Use the number cards only once for each number. When 1 is placed in
How many 3-digit even numbers can be made? the ones place, the
081 number becomes an
odd number.

2 Brian told Kate to use each number card below Since the number
only once to make a 3-digit number. Find all the must be smaller
numbers that Kate can make according to the than 700, and 0
following conditions. cannot be placed in
the hundreds place,
Conditions 1 and 6 are the only
numbers that can be
It must be smaller than 700. placed in the
The tens digit must be an odd number. hundreds place.

1860

15Number and Operations
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