Make maths fun with this adorable monster worksheet which helps children to practice "one more" and "one less".
One Less One More Monsters
Can the kids fill in the blanks in this table, by writing one less and one more than the numbers in the middle?
Introduce the most simple of subtraction by taking one away from numbers 1 to 10. This set of 3 worksheets works through some word problems and then introduces a few "sums" for the children to try, all with the help of a number line if necessary.