3,85:3,45=385:345

56:25

205:2

5,52:12

393,4:7

119,4:23,6=1194:236

102:25

83:2,3=830:23

837:7,2=8370:72

116:3,6=1160:36

39:2,5=390:25

Hi

nhanh

a, 4,32m *(2+3)=4,32 *5 =21,6m b, 3,45m2 *(9+1)=3,45 *10= 34,5 m2

3,45 × 123 + 4 × 3,45 - 3,45 × 27

= 3,45 × (123+4-27)

= 3,45 × 100 = 345

a , 11 , 2 − 7 , 63 + 8 , 8 − 2 , 37 = 11 , 2 + 8 , 8 ⏟ − 7 , 63 + 2 , 37 ⏟ = 20 − 10 = 10 b , 3 , 45 × 123 + 4 × 3 , 45 − 3 , 45 × 27 = 3 , 45 × 123 + 4 − 3 , 45 × 27 = 3 , 45 × 127 − 3 , 45 × 27 = 3 , 45 × 127 − 27 = 3 , 45 × 100 = 345

a) 

11 , 2 − 7 , 63 + 8 , 8 − 2 , 37 = 11 , 2 + 8 , 8 ⏟ − 7 , 63 + 2 , 37 ⏟                                                                       = 20 − 10                                                                       = 10

b)

3 , 45 × 123 + 4 × 3 , 45 − 3 , 45 × 27 = 3 , 45 × 123 + 4 − 3 , 45 × 27 = 3 , 45 × 127 − 3 , 45 × 27 = 3 , 45 × 127 − 27 = 3 , 45 × 100 = 345

\(3,45\times0,99+3,45:100+3,45\times99\\ =3,45\times0,99+3,45\times0,01+3,45\times99\\ =3,45\times\left(0,99+0,01+99\right)\\ =3,45\times100\\ =345\)

mntrar lời giúp mik với

3,45 x 0,99 + 3,45 :100 + 3,45 x 99= 345 nha bạn

a: =11,2x100=1120

b: =3,45x10=34,5

a, =11,2×(36+63+1)

=11,2×100=1120

b, =3,45×(18,5-2,3-6,2)

=3,45×10=34,5

\(3,45.3,2+3,45+3,45+3,45.4,8\)

\(=3,45\left(3,2+1+1+4,8\right)\)

\(=3,45.10\)

\(=34,5\)

Xin chào