1

=48,72-(2,67+5,33)

=48,72-8

=40,72

2

=(0,8x12,5)x26,35

=10x26,35

=263,5

3

=20,32+(94,21-44,21)

=20,32+50

=70,32

4

53,32x78=21x56,32+56,32x1

53,32x78=(21+2)x56,32

53,32x78=22x56,72

53,32x78=1247,84

        c1    40,72

  c2     263,5

c3       70,32

c4     53,98

48,72 - 2.67 - 5,33

=48,72 - (2.67 + 5,33)

=48,72-8

=40,72

 b) 94,21 + 20,32 -44,21

=(94,21-44,21)+20,32

=50+20,32

=70,32

c) 56,32 x 78+21x56,32+56,32

=56,32 x 78+21x56,32+56,32 x 1

=56,32 x (78+21+1)

=56,32 x 100

=5632

\(56,32x78+21x56,32+56,32\)

\(=56,32x\left(78+21+1\right)\)

\(=56,32x100=5632\)

=56,32*(78+21+1)=56,32*100=5632

  56,32*78+21*56,32+56,32

=56,32*78+21*56,32+56,32*1

=56,32*(78+21+1)

=56,32*100

=5632

a/\(4,19\times50-132:\dfrac{2}{3}\)
\(=209,5-198\)
\(=11,5\)
b/\(637,38:18\times2,5\)
\(=35,41\times2,5\)
\(=88,525\)
c/\(56,32-13,4\times2,4\)
\(=56,32-32,16\)
\(=24,16\)
d/\(\dfrac{2}{5}:\left(\dfrac{4}{5}-\dfrac{1}{2}\right)\)
\(=\dfrac{2}{5}:\dfrac{3}{10}\)
\(=\dfrac{4}{3}\)

hrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

96,73 * 5348 = 517 312,04

36,98 : 5,32 = 6,95 (dư 0,60)

48,54 * 89,6 = 4349,184

998,6 : 5,3 = 188,41 (dư 2,7)

873,7 : 63 = 13,86 ( Dư 52 )

5,217 * 8,62 = 44,97054

19,04 : 5,6 = 3,4

637,38 : 18 = 35,41

56,32 x 2,4 = 135,168

19,04 : 5,6 = 3,4

637,38 : 18 = 35,41

56,32 x 2,4 = 135,168

Hok tốt

Trả lời :

19,04 : 5,6 = 3,4

637,38 : 18 = 35,41

56,32 x 2,4 = 352/15

Mk k r đóa !!

Nhớ k lại nhoa !!

Thks nhìu :))

~ Thiên Mã ~

56,32 x (78+21+1)=56,32 x 100=5632

=12,4 x (72,53 + 72,47)

=12,4x145

=1798 

a) 12,4 x 72,53 + 72,47 x 12,4

= 12,4 x ( 72,53 + 72,47 )

= 12,4 x 145

= 1798.

b) 56,32 - 13,4 x 2,4 = 56,32 - 32,16

                              = 24,26.

A

A

33