x + 245 = 43 . 11
x + 245 = 473
x = 473 - 245
x = 228
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Tìm x thuộc N,biết:
a) x+245=43.11
b) x-382=159:3
c)7x+2x=918
d)3.(x-2)+150=240
tính nhanh;43.11+48.89
1 ) tìm x : ( X-5) x (X-7)
tách 1 thừa số thành tổng 2 sô rồi vận dụng : a.( b+c)= a.b+a.c
i) 29.40
k)43.11
m)67 . 101
n) 423.1001
giúp mình nhé ! trân trọng cảm ơn !
tinh nhanh .
a) 43.11 b / [67-1].99
tính nhanh.
a/997+ 86
b/37.62+37
c/43.11
d/67.101
e/423.1001
f/67.99
g/998.34
h/8.17.125
i/4.37.25
trình bày cụ thể giúp mình
1:Tính nhanh:
96:8 =
(trình bày cách giải nhé)
2:Tính nhanh:
a) 43.11 b) (32.83.25):8 c) 240:(2.3.4)
Cách giải lớp 6
giúp mk nhé !
A group of students, including boys and girls are very close, anytwo of you in the group are close friends. The guys say to each other that we each have some guys with some female friends. Andthe girls say to each other that we each have twice the number ofmen you girls. (Note: Some friends of each person included in thegroup). That group of students asked how many of you men, how many girls?
Đọc tiếp
A group of students, including boys and girls are very close, anytwo of you in the group are close friends. The guys say to each other that we each have some guys with some female friends. Andthe girls say to each other that we each have twice the number ofmen you girls. (Note: Some friends of each person included in thegroup). That group of students asked how many of you men, how many girls?
Tìm x ∈ N thỏa mãn 245 ⋮ x,294⋮x và 25 < x ≤51
Tìm x, biết:
a) − x − 1 9 = − 2 45
b) − 3 7 − x = 4 5 + − 2 3