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Wednesday, 25 November 2015

WALT:Use place value to answer subtraction problems

1)47-23=
    7 - 3 = 4
40-20=20  20+4=24


2)82-51=
    2  -  1 = 1
80-50=30    30+1=31


3)63-44=
        4 4
63-40=23   23-4=19


4)58-32=
    8  - 2 = 6
50-30=20   20+6=26


5)69-36=
    9  -  6  = 3
60-30=30  30+3=33


6)74-28=
   74-20=54  54-8=46


7)85-24=

   85-20=65  65-4=61

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