1 x 97, 97 x 1
1 x 97.
97 x 3 is the same as 97 + 97 + 97 if that helps you understand how multiplication works, 97 x 3 = 291
proper fraction
22x111x21x222x11
1x82x4
multiplication/division: least number of significant figures addition/subtraction: least number of numbers to the right of decimal point
in a math book
Infinite
Yes
This is most often defined as the set of multiplication problems created by single-digit numbers. It includes problems from 1 x 1 to 9 x 9. Some people extend the definition to include multiplication problems up to 12 x 12.
Multiplication problems can be solved by consulting a multiplication table. Large numbers can be multiplied using a technique called Long Multiplication. One can also use an electronic calculator.
Infinitely many.