carswellk
carswellk
23-09-2016
English
contestada
what is 36+28 using mental math strategies
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Аноним
Аноним
23-09-2016
Round up both numbers, 40+30=70
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Drian
Drian
23-09-2016
+36
28
add 6 and 8 which makes 14
now leave the 4 behind and add 3 +2 which gives you 5, now finally add 1 more
which gives you 64
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