2 + 4 = ?
3 + 5 = ?
1 + 6 = ?
5 + 2 = ?
6 + 3 = ?
5 + 6 = ?
9 + 2 = ?
5 + 5 = ?
T i c k cho 5 người nhanh và chính xác nhất nha!
K
Khách
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Những câu hỏi liên quan
NT
24 tháng 2 2022
a)
1 + 5 = 6
6 + 5 = 11
5 + 4 = 9
9 + 3 = 12
6 + 3 = 9
b)
6 - 2 = 4
3 - 2 = 1
7 - 4 = 3
9 - 5 = 4
7 - 7 = 0
k nhé:))
TF
1 + 4 = ?
11 + 3 = ?
3 + 8 = ?
6 + 2 = ?
2 + 8 = ?
T i c k cho 5 người nhanh nhất và chính xác nhất nha!
15
23 tháng 2 2022
1 + 4 = 5
11 + 3 = 14
3 + 8 = 11
6 + 2 = 8
2 + 8 = 10
t i c k cho mik nha
( nhanh nhất)
TF
13
TF
16
27 tháng 2 2022
2 nhân 2 =4
3 nhân 4 =12
2 nhân 3 = 6
5 nhân 7 =35
4 nhân 1 = 4
28 tháng 2 2022
4 - 2 = 2
2 - 1 = 1
3 - 2 = 1
5 - 2 =3
9 - 5 = 4
b)
3 + 9 = 12
9 + 9 =18
8 + 7 = 15
7 + 7 = 14
7 + 6 = 13
6 + 2 = 8
12 + 3 = 15
HT nhé
TN
28 tháng 2 2022
a)
4 - 2 = 2
2 - 1 = 1
3 - 2 = 1
5 - 2 = 3
9 - 5 = 4
b)
3 + 9 = 12
9 + 9 = 18
8 + 7 = 15
7 + 7 = 14
7 + 6 = 13
6 + 2 = 12
12 + 3 = 15
Q
2 tháng 4 2017
Bài 1: Tính
\(\text{1)}\) \(\dfrac{5}{8}.\dfrac{7}{30}-\dfrac{5}{2}.\dfrac{1}{8}\)
\(=\dfrac{5}{8}.\dfrac{7}{30}-\dfrac{5}{8}.\dfrac{1}{2}\)
\(=\dfrac{5}{8}.\left(\dfrac{7}{30}-\dfrac{1}{2}\right)\)
\(=\dfrac{5}{8}.\dfrac{-4}{15}\)
\(=\dfrac{-1}{6}\)
\(\text{2)}\) \(\dfrac{21}{10}.\dfrac{3}{4}-\dfrac{21}{10}-\dfrac{3}{4}\)
\(=\dfrac{63}{40}-\dfrac{21}{10}-\dfrac{3}{4}\)
\(=\dfrac{-21}{40}-\dfrac{3}{4}\)
\(=\dfrac{-51}{40}\)
\(\text{3)}\) \(\dfrac{-4}{11}:\dfrac{-6}{11}\)
\(=\dfrac{-4}{11}.\dfrac{11}{-6}\)
\(=\dfrac{4}{6}\)
\(\text{4)}\) \(\dfrac{2}{7}.\dfrac{14}{3}-1\)
\(=\dfrac{4}{3}-1\)
\(=\dfrac{1}{3}\)
\(\text{5)}\) \(\dfrac{4}{7}:\left(\dfrac{1}{5}.\dfrac{4}{7}\right)\)
\(=\dfrac{4}{7}:\dfrac{1}{5}:\dfrac{4}{7}\)
\(=1:\dfrac{1}{5}\)
\(=5\)
\(\text{6)}\) \(\dfrac{12}{7}.\dfrac{7}{4}+\dfrac{35}{11}:\dfrac{245}{121}\)
\(=3+\dfrac{35}{11}.\dfrac{121}{245}\)
\(=3+\dfrac{11}{7}\)
\(=3\dfrac{11}{7}=\dfrac{32}{7}\)
\(\text{7)}\) \(\left(\dfrac{4}{3}+\dfrac{8}{3}\right).\left(\dfrac{7}{4}-\dfrac{6}{4}\right):\left(\dfrac{6}{5}+\dfrac{12}{5}+\dfrac{1}{5}\right)\)
\(=4.\left(\dfrac{7}{4}-\dfrac{6}{4}\right):\left(\dfrac{6}{5}+\dfrac{12}{5}+\dfrac{1}{5}\right)\)
\(=4.\dfrac{1}{4}:\left(\dfrac{6}{5}+\dfrac{12}{5}+\dfrac{1}{5}\right)\)
\(=4.\dfrac{1}{4}:\dfrac{19}{5}\)
\(=1:\dfrac{19}{5}\)
\(=\dfrac{5}{19}\)
\(\text{8)}\) \(\left(\dfrac{1}{4}-\dfrac{1}{4}+\dfrac{\dfrac{1}{9}}{\dfrac{1}{9}}\right):\left(\dfrac{2}{3}+\dfrac{\dfrac{7}{15}}{\dfrac{2}{5}}-\dfrac{1}{6}\right)\)
\(=\left(0+1\right):\left(\dfrac{2}{3}+\dfrac{7}{15}:\dfrac{2}{5}-\dfrac{1}{6}\right)\)
\(=1:\left(\dfrac{2}{3}+\dfrac{7}{6}-\dfrac{1}{6}\right)\)
\(=1:\left(\dfrac{2}{3}+1\right)\)
\(=1:\dfrac{5}{3}\)
\(=\dfrac{3}{5}\)
\(\text{9)}\)
\(\left[\left(\dfrac{2}{193}-\dfrac{3}{389}\right).\dfrac{193}{17}+\dfrac{33}{34}\right]:\left[\left(\dfrac{7}{1931}-\dfrac{11}{3862}\right).\dfrac{1931}{25}+\dfrac{9}{2}\right]\)
\(=\left[\dfrac{199}{75077}.\dfrac{193}{17}+\dfrac{33}{34}\right]:\left[\left(\dfrac{7}{1931}-\dfrac{11}{3862}\right).\dfrac{1931}{25}+\dfrac{9}{2}\right]\)
\(=\left[\dfrac{199}{6613}+\dfrac{33}{34}\right]:\left[\left(\dfrac{7}{1931}-\dfrac{11}{3862}\right).\dfrac{1931}{25}+\dfrac{9}{2}\right]\)
\(=\dfrac{13235}{13226}:\left[\left(\dfrac{7}{1931}-\dfrac{11}{3862}\right).\dfrac{1931}{25}+\dfrac{9}{2}\right]\)
\(=\dfrac{13235}{13226}:\left[\dfrac{3}{3862}.\dfrac{1931}{25}+\dfrac{9}{2}\right]\)
\(=\dfrac{13235}{13226}:\left[\dfrac{3}{50}+\dfrac{9}{2}\right]\)
\(=\dfrac{13235}{13226}:\dfrac{114}{25}\)
\(=\dfrac{330875}{1507764}\)
AW
9 tháng 5 2018
1+2+3+4+5+6+7+8+9+10
=(1+9)+(2+8)+(3+7)+(4+6)+5+10
=10+10+10+10+10+5
=50+5
=55
k mk nha. Mk k bạn cho nha
TL
2+4=6
3+5=8
1+6=7
5+2=7
6+3=9
5+6=11
9+2=11
5+5=10
HT
2 + 4 = 6
3 + 5 = 8
1 + 6 = 7
5 + 2 = 7
6 + 3 = 9
5 + 6 = 11
9 + 2 = 11
5 + 5 = 10
HT