find values of each using property:1;493*8add493*2:b;15625*15625-15625*5625.
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493×8+493×2
493(8+2)
493×10
4930
15625×15625-15625×5625
15625(15625-5625)
15625(10000)
156250000
493(8+2)
493×10
4930
15625×15625-15625×5625
15625(15625-5625)
15625(10000)
156250000
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