Page 176 - NUMINO Challenge_M2

If the given expression, + + + + + + =3 , is changed to a
multiplication sentence, then ^7=3 . Other than 1, when odd numbers
are multiplied, the number that is multiplied is the same as the ones digit of

the product only when the number is 5.

In the ones place, B+8=17, so B=9. Among the remaining numbers 3,
4, 5, and 6, the numbers that fit A and B when A is greater than C and
1+A+C=12 are A=6 and C=5.

AB 69
C8 58

127 127

A=6, B=9, and C=5

A=C+2, B=10-C A+B=C+2+10-C=12

^ =18, =7 and can be found using the table given below.

Number that represents 18 9 6

Number that represents 1 2 3

18 18 18

17 7 3

=9 =2.

If the greatest number 76 is added to the second greatest number 54, the
only numbers that can be subtracted are 3, 2, and 1, which will have a
result much greater than 100. Use the difference of 76 and 54.

9 8 76 54 3 2 1=100

There are 5 cards, so cannot be placed between every number.
Therefore, one number must be a 2-digit number. If 1 2 3 4
5 67 is used, the result is 82, which is greater than 55. So, the 2-digit
number made must be less than 67. Use the 2-digit numbers 56, 45,
34, to find the addition expression that adds up to 55.

1 2 34 5 6 7=55

39Answer Key