Remember, it is usually easier to subtract ten and then add one back on when working out answers in your head.
The robots have finished hoovering so now they are taking 19 away from 2-digit numbers. They work together: one takes twenty away and the other adds one!
It's too cold for swimming so why not try some subtracting eleven questions: they are quite easy.
Two steps to get these correct. Usually I take 20 then take another one away, although sometimes I take one away first and then twenty. It's up to you!
A wide variety of strategies will be used to achieve a high score on this timed activity, subtracting a single digit from a 2-digit number.
Subtracting a single digit from a multiple of 10 is often best done by adding on to the next whole ten and then counting on in tens. Only 30 seconds, so not much time to get a high score!
Tricky game to practise subtracting a single digit crossing the tens boundary.
The time counts down and the stars move faster in this fun game where you can practise subtracting a single digit crossing 20.
Further practice at subtracting two multiple of ten. Ten would be a fantastic score!
Eat up the ladybirds by adding multiples of 100 correctly.
Once you know one subtraction fact there are two addition facts that can be easily worked out. An excellent way to check that subtraction is correct.
More sums using knowledge that addition is the inverse of subtraction.