I am learning to solve two digit addition problems by adding in parts
eg, 46 + 33=, 46 + 30=76, 76 + 3= 79
(Stage 5 - Hero)
S5 adding in parts edited.mp4
St5 LI4 #1.pdf
This 'prove it' shows that this strategy can be achieved, but to show application of this knowledge the word problems in the post test should be completed.
add and subtract 2 digit numbers in parts problem solving