Number Lines
Number lines have many uses within mathematics in primary education.
Numbered Number Lines
Counting On
6 + 4 =
6+4=10
12+20=
12+20=32
Counting Back
12-5=
12-5=7
Blank Number Lines
Adding tens and units
23+14=
23+14=37
45+31=
45+31=76
Subtracting tens and units
27-12=
27-12=15
63-34=
63-34=29
Multiplication
2x5=
(2 added together 5 times is….)
2x5=10
6x3=
(6 added together 3 times is…)
6x3=18
Division
Complete jumps of the second (smaller) number until the larger number is reached. The number of jumps completed is the answer to the question.
12÷2=
(How many groups of 2 will fit into 12?)
12÷2=6
21÷3=
(How many groups of 3 will fit into 21?)
21÷3=7