9*9*9*9*9*9*0
9*9*9*9*9*9*9*9*9*9*9*9+1*0+1*0+1=?????????????
9*9*9*9*9*9*9*9*9*9*9*9+1*0+1*0+1
=282429536481+1+1+1
=282429536484
>, <, =?
0…9 | 8…5 | 6…9 | 10…9 |
0…8 | 5…0 | 9…6 | 9…10 |
0…7 | 8…0 | 9…9 | 10…10 |
Lời giải chi tiết:
0 < 9 | 8 > 5 | 6 < 9 | 10 > 9 |
0 < 8 | 5 > 0 | 9 > 6 | 9 < 10 |
0 < 7 | 8 > 0 | 9 = 9 | 10 = 10 |
9-9-9-9-9-9-9-9-9+0+7×9=
9 - 9 - 9 - 9 - 9 - 9 - 9 - 9- 9 + 0 + 7 \(\times\) 9
= 9 - 9 \(\times\) 8 + 7 \(\times\) 9
= 9 \(\times\) ( 1 - 8 + 7)
= 9 \(\times\) 0
= 0
9+9+9+9+9+9+9+9+9+9+9:0+6=?
9+9+9+9+...+9+9+9:0 +6
=9 x 10 +6
=90+6
=96
9+9+9+9+9+9+9+9+9+9+9:0+6
=9+9+9+9+9+9+9+9+9+9+0+6
=9x10+0+6
=90+0+6
=96
Tính nhẩm :
9 x 1 =
9 x 5 =
9 x 4 =
9 x 10 =
9 x 2 =
9 x 7 =
9 x 8 =
9 x 0 =
9 x 3 =
9 x 9 =
9 x 6 =
0 x 9 =
9 x 1 = 9
9 x 5 = 45
9 x 4 = 32
9 x 10 = 90
9 x 2 = 18
9 x 7 = 63
9 x 8 = 72
9 x 0 = 0
9 x 3 = 27
9 x 9 = 81
9 x 6 = 54
0 x 9 = 0
= 9 = 45 = 36
Tính nhẩm :
9 x 4 =
9 x 2 =
9 x 5 =
9 x 10 =
9 x 1 =
9 x 7 =
9 x 8 =
0 x 9 =
9 x 3 =
9 x 6 =
9 x 9 =
9 x 0 =
9 x 4 = 36
9 x 2 = 18
9 x 5 = 40
9 x 10 = 90
9 x 1 = 9
9 x 7 = 63
9 x 8 = 72
0 x 9 = 0
9 x 3 = 27
9 x 6 = 54
9 x 9 = 81
9 x 0 = 0
Tính nhẩm.
a) 9 x 1 9 x 4 9 x 7
b) 9 x 2 9 x 5 9 x 8
c) 9 x 3 9 x 6 9 x 9
d) 9 x 10 9 x 0 0 x 9
a) 9 x 1=9 9 x 4=36 9 x 7=63
b) 9 x 2=18 9 x 5=45 9 x 8=72
c) 9 x 3=27 9 x 6=54 9 x 981
d) 9 x 10=90 9 x 0=0 0 x 9=0
9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9**9*9*9*9*0*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9**9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9*9**9*9*9*9
9^9×9^8×9^7×9^6×9^5×9^4×9^3×9^2×9^1×9^0
\(9^9*9^8*9^7*9^6*9^5*9^4*9^3*9^2*9^1*9^0=\)99+8+7+6+5+4+3+2+1+0 = 945
99×98×97×96×95×94×93×92×91×90
=(99×91) × (98×92) × (97×93) × (96×94) ×90
= 910 × 910 × 910 × 910 × 90
= 940 × 90
=0
Nhớ tick cho mình nha
9+9+9+9+9+9+9+9+9+9+9+9+9=?
1+2+3+4+5+6+7+8+9= ?
1+4+8+3+0+1+8+9+11+60= ?
a) 9+9+9+9+9+9+9+9+9+9+9+9+9 = 9 x 13 = 117
b) 1+2+3+4+5+6+7+8+9 = (1+9)+(2+8)+(3+7)+(4+6)+5= 10 x 4 + 5+ = 40 + 5 = 45
c) 1+4+8+3+0+1+8+9+11+60=105 (bạn tự nghĩ nha chứ mình lười :v)
Học tốt :D
a, 117
b, 45
c, 105
bài của mình đây nha, chúc bạn học tốt
a) kq=117
b) kq=46
c) kq=105