Adding numbers to 20 (Penjumlahan hingga 20)

Try this!
If we would have 12 apples from Kiki and Koko, how many apples should Kiki and Koko bring? (you can answer with several possibilities)
This is easy!
If there are 18 flowers on teacher's desk, 11 flowers are from the boys group, and the rest is from the girls group. [br]How many flowers were given by the girls group?
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– MirnaHaerani, Damir Belavić

Information: Adding numbers to 20 (Penjumlahan hingga 20)