Page 14 - NUMINO Challenge_D1
P. 14
Problem solving Key Points
1 Numbers from 1 to 9 are arranged in descending Make the number
order, as shown below. Insert and between closest to 100 by
the numbers to form three equations that result in putting two adjacent
100. (You can also put two or more numbers numbers together.
together to make 2-digit numbers or numbers Use the remaining
greater than two digits.) numbers to form an
equation that results
9 8 7 6 5 4 3 2 1 100 in the difference
9 8 7 6 5 4 3 2 1 100 between 100 and
9 8 7 6 5 4 3 2 1 100 that number.
2 Insert operation symbols ( , , , ) between Put two adjacent
the numbers below to form three equations that numbers together or
result in 104. (You can also put two or more multiply them to
numbers together to make 2-digit numbers or result in the number
numbers greater than two digits.) closest to 104.
2 3 5 7 7 9 104
2 3 5 7 7 9 104
2 3 5 7 7 9 104
11Number and Operations
1 Numbers from 1 to 9 are arranged in descending Make the number
order, as shown below. Insert and between closest to 100 by
the numbers to form three equations that result in putting two adjacent
100. (You can also put two or more numbers numbers together.
together to make 2-digit numbers or numbers Use the remaining
greater than two digits.) numbers to form an
equation that results
9 8 7 6 5 4 3 2 1 100 in the difference
9 8 7 6 5 4 3 2 1 100 between 100 and
9 8 7 6 5 4 3 2 1 100 that number.
2 Insert operation symbols ( , , , ) between Put two adjacent
the numbers below to form three equations that numbers together or
result in 104. (You can also put two or more multiply them to
numbers together to make 2-digit numbers or result in the number
numbers greater than two digits.) closest to 104.
2 3 5 7 7 9 104
2 3 5 7 7 9 104
2 3 5 7 7 9 104
11Number and Operations
