Cung bot di bao nhieu don vi de 77/123 duoc gia tri phan so moi=3/5
GIUP VOI MOI NGUOI !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50+51+52+53+54+56+57+58+59+60+61+62+63+64+65+66+67+68+69+70=?
99+32-47 : (9-5)=
Tính nhẩm:
4 × 3 = ... | 32 : 4 = ... | 0 × 5 : 4 = ... |
5 × 9 = ... | 18 : 3 = ... | 1 × 2 : 2 = ... |
3 × 7 = ... | 20 : 2 = ... | 0 : 4 : 3 = ... |
2 × 8 = ... | 35 : 5 = ... | 3 : 3 × 4 = ... |
1+1=?
2+2=?
4+4=?
8+8=?
16+16=?
32+32=?
64+64=?
128+128=?
50+ 64-27-3+32=
1 + 32 + 45 +20 =
90 + 64 + 32 =
4 : 4 = ?
8 : 4 = ?
12 : 4 = ?
16 : 4 = ?
20 : 4 = ?
24 : 4 = ?
28 : 4 = ?
32 : 4 = ?
36 : 4 = ?
40 : 4 = ?
5 : 5 = ?
10 : 5 = ?
15 : 5 = ?
20 : 5 = ?
25 : 5 = ?
30 : 5 = ?
35 : 5 = ?
40 : 5 = ?
45 : 5 = ?
50 : 5 = ?
Đặt rồi tính:
42 - 5 82 - 8
62 - 6 32 - 3