1)
500*10=5000
500:10=50
500+10=510
2)
630*70=44100
630:70=9
630+70=700
3)
8100*90=729000
8100:90=90
8100+90=8190
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Verified answer
1)
500*10=5000
500:10=50
500+10=510
2)
630*70=44100
630:70=9
630+70=700
3)
8100*90=729000
8100:90=90
8100+90=8190