VII:Fill in each the blank with the appropriate form of the word in brackets

1.There is a......of books on the shelf(collect)

2.It is very......for people in remote areas to get to hospitals(convinience)

3.He is very ......with his hands(skill)

4.It is said that water collected from the local streams is......to drink(safe)

5.We want......relations with all countries(friend)

6.I like to eat......,so I eat a lot of fruit and vegetables every day(health)

663:3=221

Số lớn nhất:321

 1 * 1 = 1 Vì bất cứ số nào nhân vs 1 cũng bằng 1 

Đáp số: 321

456:3=

152

a,(-8-12):/-5/=-20:5=4(ban oi con nay ko tinh nhanh dc)

b,(-49)-/-145/+(-2017)+/245/+(-51)=(-49+am 51)-145-2017+245=-100+100-2017=0-2017=-2017

c lam theo con gai obama minh ko chac ban tinh lai ket qua xem

d,-99(2-678)-678.99=-99.676+678.(-99)=-99.676+678.(-99)=-99(676+678)=-99.1345=-133155(tinh lai ket qua nha)