Answer:
1.) (5+10)-5(15÷5)
=15-5(3)
=15-15
=0
2.) (10×15)÷10(5×2)
=150÷ 10(5×2)
=15(10)
=150
3.) (5-10)+(10÷5)
=5+(10÷5)
=5+2
=7
4.) [2(5)(10)-45] ÷ 5
=(100-45) ÷ 5
=55 ÷ 5
=11
5.) [2(10)(15)-5(5)(10)] ÷ (5)(10)
=(300-250) ÷ 50
=50 ÷ 50
=1
Step-by-step explanation:
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