其它
Calculate  (1) 6+19=  (2) 15-8= 
Overseas Competition->Knowledge Point->Word Problem Modules->Applying Addition and Subtraction->Simple Addition and Subtraction
Partition 6 into 1 and 5. 19+1=20, 20+5=25  Partition 8 into 5 and 3. 15-5=10, 10-3=7 