If $22+30=52$22+30=52, what is the answer to $22+29$22+29?
Use the number line, to help you find the value of $14+31$14+31.
Use a strategy to find the sum of $15+21$15+21.
Use a strategy to find the sum of $49+16$49+16.
uses mental and written strategies for addition and subtraction involving two-, three-, four and five-digit numbers