Sets of ten questions revising mental subtraction of 2-digit numbers.
Tricky word problems all to do with subtraction. Get 10 out of 10 correct for an on-screen reward!
Wow! This set is all about negative numbers!
Subtracting multiples of 100 mentally. Don'f forget you can print out results after ten questions.
Clear thinking is needed for these tricky subtract questions. Often the easiest way is to count on in tens in your head.
No time to waste here! Just 60 seconds to answer as many 'take 99' questions as possible.