Crossing the 10.
With today's lesson, we will be using a number line to help us to cross the ten when adding.
45 + 8 =
so we split this up in to two small sums. For the first one we use our number bond knowledge to get to the next multiple of ten.
45 + 5 = 50
now we are at 50 we need to add the 3 to get to our answer which is 53.
Choose the tricky, trickier or trickiest challenge in the document below.