Multiplication is a mathematical operation that scales one number by another (multiplying – sign: x). It replaces addition of a large quantity of numbers in a row. Multiplying is a math operation that is opposite of division. For example: you can substitute the mathematical expression 5+5+5+5 with 5×4 (the number 5 multiplied with the number of times it has appeared in a row).
Multiplication has several properties. When a number is multiplied with the number 1, the product (the result of multiplication) is the same as that number. When a number is multiplied with zero, the product is always zero. When a number is multiplied with negative one, the result is the negative version of that number. It also has properties of commutativity, associativity and distributivity.
The commutative and associative properties are similar to those properties in addition. Distributivity applies when addition and multiplication are combined, as they are in this example:
a * (b + c) = a * b + a * c
A very important thing to remember is that the order of importance of multiplication is always greater than the order of importace of addition or subtraction. You first multiply the numbers (where there is need for that) and them add or subtract them. Here is an example:
5 * 4 + 3 = 20 + 3 = 23
The single exception to the rule is that addition or subtraction has priority over multiplication when the numbers that need to be added and the operator are in brackets, and the operator of multiplication is not.
Multiplying exams for teachers
Exam Name 
File Size 
Downloads 
Upload date 
Positive integers

Multiplying positive integers – very easy 
78 kB 
1574 
October 13, 2012 
Multiplying positive integers – easy 
143 kB 
1558 
October 13, 2012 
Multiplying positive integers – medium 
166.3 kB 
1584 
October 13, 2012 
Multiplying positive integers – mediumhard 
173.1 kB 
1467 
October 13, 2012 
Multiplying positive integers – hard 
561.5 kB 
1079 
October 13, 2012 
Multiplying positive integers – very hard 
571.8 kB 
1159 
October 13, 2012 
Positive decimals

Multiplying positive decimals – very easy 
554.5 kB 
1025 
October 13, 2012 
Multiplying positive decimals – easy 
555.5 kB 
999 
October 13, 2012 
Multiplying positive decimals – medium 
579.2 kB 
966 
October 13, 2012 
Multiplying positive decimals – mediumhard 
580.2 kB 
869 
October 13, 2012 
Multiplying positive decimals – hard 
569.5 kB 
904 
October 13, 2012 
Multiplying positive decimals – very hard 
567.2 kB 
889 
October 13, 2012 
Positive fractions

Multiplying positive fractions – very hard 
567.2 kB 
889 
October 13, 2012 
Multiplying positive fractions – very easy 
172.7 kB 
1281 
October 13, 2012 
Multiplying positive fractions – easy 
188.9 kB 
995 
October 13, 2012 
Multiplying positive fractions – medium 
577.2 kB 
936 
October 13, 2012 
Multiplying positive fractions – mediumhard 
591.9 kB 
856 
October 13, 2012 
Multiplying positive fractions – hard 
575.7 kB 
857 
October 13, 2012 
Multiplying positive fractions – very hard 
581 kB 
877 
October 13, 2012 
Positive mixed numbers

Multiplying positive mixed numbers – very easy 
176.8 kB 
871 
October 13, 2012 
Multiplying positive mixed numbers – easy 
209.8 kB 
892 
October 13, 2012 
Multiplying positive mixed numbers – medium 
585.6 kB 
866 
October 13, 2012 
Multiplying positive mixed numbers – mediumhard 
592.9 kB 
843 
October 13, 2012 
Multiplying positive mixed numbers – hard 
589.3 kB 
803 
October 13, 2012 
Multiplying positive mixed numbers – very hard 
596.6 kB 
845 
October 13, 2012 
Positive improper fractions

Multiplying positive improper fractions – very easy 
166 kB 
862 
October 13, 2012 
Multiplying positive improper fractions – easy 
169.9 kB 
895 
October 13, 2012 
Multiplying positive improper fractions – medium 
571.6 kB 
824 
October 13, 2012 
Multiplying positive improper fractions – mediumhard 
569.5 kB 
808 
October 13, 2012 
Multiplying positive improper fractions – hard 
560.5 kB 
818 
October 13, 2012 
Multiplying positive improper fractions – very hard 
571.8 kB 
819 
October 13, 2012 
Non positive integers

Multiplying integers – very easy 
137.9 kB 
1235 
October 13, 2012 
Multiplying integers – easy 
143.6 kB 
1101 
October 13, 2012 
Multiplying integers – medium 
173.3 kB 
1121 
October 13, 2012 
Multiplying integers – mediumhard 
173.5 kB 
1112 
October 13, 2012 
Multiplying integers – hard 
565.9 kB 
923 
October 13, 2012 
Multiplying integers – very hard 
568 kB 
863 
October 13, 2012 
Non positive decimals

Multiplying decimals – very easy 
186.6 kB 
1066 
October 13, 2012 
Multiplying decimals – easy 
187 kB 
1176 
October 13, 2012 
Multiplying decimals – medium 
578.8 kB 
866 
October 13, 2012 
Multiplying decimals – mediumhard 
577 kB 
802 
October 13, 2012 
Multiplying decimals – hard 
564.9 kB 
845 
October 13, 2012 
Multiplying decimals – very hard 
567.9 kB 
823 
October 13, 2012 
Non positive fractions

Multiplying fractions – very easy 
179.6 kB 
821 
October 13, 2012 
Multiplying fractions – easy 
186.7 kB 
958 
October 13, 2012 
Multiplying fractions – medium 
583.8 kB 
799 
October 13, 2012 
Multiplying fractions – mediumhard 
589 kB 
818 
October 13, 2012 
Multiplying fractions – hard 
588 kB 
769 
October 13, 2012 
Multiplying fractions – very hard 
594.9 kB 
821 
October 13, 2012 
Non positive mixed numbers

Multiplying mixed numbers – very easy 
192.9 kB 
816 
October 13, 2012 
Multiplying mixed numbers – easy 
209 kB 
904 
October 13, 2012 
Multiplying mixed numbers – medium 
594.7 kB 
836 
October 13, 2012 
Multiplying mixed numbers – mediumhard 
602.2 kB 
762 
October 13, 2012 
Multiplying mixed numbers – hard 
586.3 kB 
762 
October 13, 2012 
Multiplying mixed numbers – very hard 
591.3 kB 
775 
October 13, 2012 
Non positive improper fractions

Multiplying improper fractions – very easy 
171.2 kB 
749 
October 13, 2012 
Multiplying improper fractions – easy 
174 kB 
783 
October 13, 2012 
Multiplying improper fractions – medium 
574.7 kB 
773 
October 13, 2012 
Multiplying improper fractions – mediumhard 
573.9 kB 
714 
October 13, 2012 
Multiplying improper fractions – hard 
570.7 kB 
775 
October 13, 2012 
Multiplying improper fractions – very hard 
577.4 kB 
756 
October 13, 2012 
Multiplying worksheets for students
Worksheet Name 
File Size 
Downloads 
Upload date 
Positive

Multiplying positive integers 
496.1 kB 
1187 
October 14, 2012 
Multiplying positive decimals 
51.8 kB 
1013 
October 14, 2012 
Multiplying positive fractions 
632.1 kB 
811 
October 14, 2012 
Multiplying positive mixed numbers 
637.8 kB 
894 
October 14, 2012 
Multiplying positive improper fractions 
594.6 kB 
758 
October 14, 2012 
Non positive

Multiplying integers 
166.8 kB 
948 
October 14, 2012 
Multiplying decimals 
246.3 kB 
891 
October 14, 2012 
Multiplying fractions 
393.1 kB 
823 
October 14, 2012 
Multiplying mixed numbers 
412.4 kB 
806 
October 14, 2012 
Multiplying improper fractions 
334.1 kB 
821 
October 14, 2012 
Multiplying knowledge test