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645 + 50 = 695
137 + 645 = 782.
645 times 8 is 5,160.
13.4375
1070
645
428 + 217 = 645
simplified it equals, 9m+8
Dcxlv dcxlv=500+100+(50-10)+5=600+40+5=645
The expression 9+5 is equivalent.
80 and 5/8
No, 8 + 8 = 16, while 8 - 8 = 0.