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 
1831 
October 13, 2012 
Multiplying positive integers – easy 
143 kB 
1859 
October 13, 2012 
Multiplying positive integers – medium 
166.3 kB 
1908 
October 13, 2012 
Multiplying positive integers – mediumhard 
173.1 kB 
1679 
October 13, 2012 
Multiplying positive integers – hard 
561.5 kB 
1278 
October 13, 2012 
Multiplying positive integers – very hard 
571.8 kB 
1384 
October 13, 2012 
Positive decimals

Multiplying positive decimals – very easy 
554.5 kB 
1199 
October 13, 2012 
Multiplying positive decimals – easy 
555.5 kB 
1153 
October 13, 2012 
Multiplying positive decimals – medium 
579.2 kB 
1103 
October 13, 2012 
Multiplying positive decimals – mediumhard 
580.2 kB 
992 
October 13, 2012 
Multiplying positive decimals – hard 
569.5 kB 
1079 
October 13, 2012 
Multiplying positive decimals – very hard 
567.2 kB 
1026 
October 13, 2012 
Positive fractions

Multiplying positive fractions – very hard 
567.2 kB 
1026 
October 13, 2012 
Multiplying positive fractions – very easy 
172.7 kB 
1467 
October 13, 2012 
Multiplying positive fractions – easy 
188.9 kB 
1178 
October 13, 2012 
Multiplying positive fractions – medium 
577.2 kB 
1082 
October 13, 2012 
Multiplying positive fractions – mediumhard 
591.9 kB 
1017 
October 13, 2012 
Multiplying positive fractions – hard 
575.7 kB 
1007 
October 13, 2012 
Multiplying positive fractions – very hard 
581 kB 
1018 
October 13, 2012 
Positive mixed numbers

Multiplying positive mixed numbers – very easy 
176.8 kB 
1034 
October 13, 2012 
Multiplying positive mixed numbers – easy 
209.8 kB 
1065 
October 13, 2012 
Multiplying positive mixed numbers – medium 
585.6 kB 
992 
October 13, 2012 
Multiplying positive mixed numbers – mediumhard 
592.9 kB 
990 
October 13, 2012 
Multiplying positive mixed numbers – hard 
589.3 kB 
940 
October 13, 2012 
Multiplying positive mixed numbers – very hard 
596.6 kB 
958 
October 13, 2012 
Positive improper fractions

Multiplying positive improper fractions – very easy 
166 kB 
1005 
October 13, 2012 
Multiplying positive improper fractions – easy 
169.9 kB 
1050 
October 13, 2012 
Multiplying positive improper fractions – medium 
571.6 kB 
979 
October 13, 2012 
Multiplying positive improper fractions – mediumhard 
569.5 kB 
958 
October 13, 2012 
Multiplying positive improper fractions – hard 
560.5 kB 
926 
October 13, 2012 
Multiplying positive improper fractions – very hard 
571.8 kB 
965 
October 13, 2012 
Non positive integers

Multiplying integers – very easy 
137.9 kB 
1448 
October 13, 2012 
Multiplying integers – easy 
143.6 kB 
1304 
October 13, 2012 
Multiplying integers – medium 
173.3 kB 
1308 
October 13, 2012 
Multiplying integers – mediumhard 
173.5 kB 
1283 
October 13, 2012 
Multiplying integers – hard 
565.9 kB 
1108 
October 13, 2012 
Multiplying integers – very hard 
568 kB 
1011 
October 13, 2012 
Non positive decimals

Multiplying decimals – very easy 
186.6 kB 
1209 
October 13, 2012 
Multiplying decimals – easy 
187 kB 
1369 
October 13, 2012 
Multiplying decimals – medium 
578.8 kB 
1000 
October 13, 2012 
Multiplying decimals – mediumhard 
577 kB 
913 
October 13, 2012 
Multiplying decimals – hard 
564.9 kB 
980 
October 13, 2012 
Multiplying decimals – very hard 
567.9 kB 
961 
October 13, 2012 
Non positive fractions

Multiplying fractions – very easy 
179.6 kB 
985 
October 13, 2012 
Multiplying fractions – easy 
186.7 kB 
1118 
October 13, 2012 
Multiplying fractions – medium 
583.8 kB 
936 
October 13, 2012 
Multiplying fractions – mediumhard 
589 kB 
950 
October 13, 2012 
Multiplying fractions – hard 
588 kB 
918 
October 13, 2012 
Multiplying fractions – very hard 
594.9 kB 
947 
October 13, 2012 
Non positive mixed numbers

Multiplying mixed numbers – very easy 
192.9 kB 
946 
October 13, 2012 
Multiplying mixed numbers – easy 
209 kB 
1048 
October 13, 2012 
Multiplying mixed numbers – medium 
594.7 kB 
969 
October 13, 2012 
Multiplying mixed numbers – mediumhard 
602.2 kB 
868 
October 13, 2012 
Multiplying mixed numbers – hard 
586.3 kB 
900 
October 13, 2012 
Multiplying mixed numbers – very hard 
591.3 kB 
880 
October 13, 2012 
Non positive improper fractions

Multiplying improper fractions – very easy 
171.2 kB 
884 
October 13, 2012 
Multiplying improper fractions – easy 
174 kB 
898 
October 13, 2012 
Multiplying improper fractions – medium 
574.7 kB 
895 
October 13, 2012 
Multiplying improper fractions – mediumhard 
573.9 kB 
849 
October 13, 2012 
Multiplying improper fractions – hard 
570.7 kB 
886 
October 13, 2012 
Multiplying improper fractions – very hard 
577.4 kB 
891 
October 13, 2012 
Multiplying worksheets for students
Worksheet Name 
File Size 
Downloads 
Upload date 
Positive

Multiplying positive integers 
496.1 kB 
1452 
October 14, 2012 
Multiplying positive decimals 
51.8 kB 
1177 
October 14, 2012 
Multiplying positive fractions 
632.1 kB 
951 
October 14, 2012 
Multiplying positive mixed numbers 
637.8 kB 
1074 
October 14, 2012 
Multiplying positive improper fractions 
594.6 kB 
880 
October 14, 2012 
Non positive

Multiplying integers 
166.8 kB 
1125 
October 14, 2012 
Multiplying decimals 
246.3 kB 
1033 
October 14, 2012 
Multiplying fractions 
393.1 kB 
989 
October 14, 2012 
Multiplying mixed numbers 
412.4 kB 
955 
October 14, 2012 
Multiplying improper fractions 
334.1 kB 
954 
October 14, 2012 
Multiplying knowledge test