x + 23564898 = 987556413000
x = 987556413000 - 23564898
x = 9875328481...
k cho tớ nha bn
thank you very much
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X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X=?
9 x 9 x 9 x 9 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 0 x 9 = ?
bằng mấy?
tìm X
X+X+X+X+X =100
X+X+X+X *5 = 200
(X+1) + (X+4) +(X+7) + (X+10) =62
3 + 4 + 5 + 6 + 7 + 8 + 9 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 0 x 3 x 3 x 3 x 3 x 3 x3 x3 x3 x3 x33 x3 x3 x3 =
Tính nhẩm:a) 2 x 2 ...... 3 x 3 ......2 x 4 ...... 3 x 5 ......2 x 6 ...... 3 x 7 ......2 x 8 ...... 3 x 9 ......4 x 4 ...... 5 x 5 ......4 x 2 ...... 5 x 7 ......4 x 6 ...... 5 x 9 ......4 x 8 ...... 5 x 3 ......b) 200 x 4 ...... 300 x 2 ......200 x 2 ...... 300 x 3 ......400 x 2 ...... 500 x 1 ......100 x 4 ...... 100 x...
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Tính nhẩm:
a) 2 x 2 = ...... 3 x 3 = ......
2 x 4 = ...... 3 x 5 = ......
2 x 6 = ...... 3 x 7 = ......
2 x 8 = ...... 3 x 9 = ......
4 x 4 = ...... 5 x 5 = ......
4 x 2 = ...... 5 x 7 = ......
4 x 6 = ...... 5 x 9 = ......
4 x 8 = ...... 5 x 3 = ......
b) 200 x 4 = ...... 300 x 2 = ......
200 x 2 = ...... 300 x 3 = ......
400 x 2 = ...... 500 x 1 = ......
100 x 4 = ...... 100 x 3 = ......
a,6 x 6 x 6 x 6 x 6 x 6 x 6
= ...... x ......
= ......
b,3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3
= ...... x ......
= ......
nhanh cho tick !
20 x 1 + 20 x 2 + 20 x 3 + 20 x 4 + 20 x 5 + 20 x 6 = ?
1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x ... x 100 = ?
Tính nhẩma) 6 x 2 ..... 6 x 3 ..... 6 x 8 ..... 6 x 1 ..... 6 x 4 ..... 6 x 5 ..... 6 x 9 ..... 1 x 6 ..... 6 x 6 ..... 6 x 7 ..... 6 x 10 ..... 0 x 6 .....b) 6 x 5 ..... 6 x 4 ..... 3 x 6 ..... 2 x 6 ..... 5 x 6 ..... 4 x 6 ..... 6 x 3 ..... 6 x 2 .....
Đọc tiếp
Tính nhẩm
a) 6 x 2 = ..... 6 x 3 = ..... 6 x 8 = ..... 6 x 1 = .....
6 x 4 = ..... 6 x 5 = ..... 6 x 9 = ..... 1 x 6 = .....
6 x 6 = ..... 6 x 7 = ..... 6 x 10 = ..... 0 x 6 = .....
b) 6 x 5 = ..... 6 x 4 = ..... 3 x 6 = ..... 2 x 6 = .....
5 x 6 = ..... 4 x 6 = ..... 6 x 3 = ..... 6 x 2 = .....
X x 2 + X+X+X+X+X+X = 64
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