\(2000\div5\times5\)
\(=1000\times2\)
\(=2000\)
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\(200\div5\times5\)
THÁCH CÁC BẠN:
\(5\times5\times5\times5\times5\times5\times5=?\)
AI NHANH MK TICK CHO
\(52+8\times5+9\)
kb voi mk nha
Tim x
\(24\times x-24\times5=480\)
2000 + 2000 + 2000 + 2000 x X = 16 000
tim X tk nhe
9000+2000+2000+3000+2000=?
2000 + 2000 + 2000 + X = 7000
tim X
tk nhe
Tính nhẩm
2000 x 2 = ............ 10000 x 2 = ............
2000 x 4 = ............ 11000 x 3 = ............
2000 x 5 = ............ 12000 x 4 = ............
Tính nhẩm:
a) 3500 + 200 = ..............
3700 - 200 = ..............
7100 + 800 =..............
7900 - 8000 = ..............
4400 + 300 = ..............
4700 - 3000 = ..............
b) 6000 + 2000 = ..............
8000 - 6000 = ..............
8000 - 2000 = ..............
7000 + 3000 = ..............
10 000 - 7000 = ..............
10 000 - 3000 = ..............
2000 + 8000 = ..............
10 000 - 2000 = ..............
10 000 - 8000 = ..............
