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(46＋28)×60 = 74 x 60 = 4440

42×50－17 = 2100- 17 = 2083

32＋105÷5 = 32 21 = 53

420×(327－238) = 420 x 89 = 37380

(4121 2389)÷7 = 6510 ÷7 = 930< / p>

3.416÷（0.016×35） = 3.416 ÷0.56 = 6.1

0.8×[(10－6.76)÷1.2] = 0.8 x(3.24÷1.2) = 0.8 x 2.7 = 2.16

5,67×0,2-0,62 = 1,134-0,62 = 0,514

0,4×0,7×0,25 = 0,4 x 0,25 x 0,7 = 0,1 x 0,7 = 0,07

0,78 5.436 1 = 6.216 1 = 7.216

30.8÷[14－(9.85+1.07)] = 30.8 ÷ (14 - 10.92) = 30.8÷3.08 = 10

[60 - (9,5+28,9)]÷0,18 = (60- 38,4)÷0,18 = 21,6 ÷0,18 = 120

2,881÷0,43-0,24×3,5 = 6,7 - 0,24 x3,5 = 6,7 - 0,84 = 5,86

20×[(2.44-1.8)÷0.4+0.15] = 20x (0.64 ÷0.4 0.15)= 20x(1.6 0.15) = 20 x1.75 = 35

28- (3,4 1,25×2,4) = 28 - (3,4 3) = 28 - 6,4 = 21,6

2,55×7,1 2,45×7,1 = (2,55 2,45) x7,1 = 5 x7,1=35,5

0,8×〔15,5-(3,21 5,79)〕 = 0,8 x (15,5 - 9) = 0,8 x 6,5 = 5,2

(31,8 3,2×4)÷5 = (31,8 12,8) ÷5 = 44,6÷5 = 8,92

31,5×4÷(6 3) = 126 ÷ 9 = 14

2÷2,5 2,5÷2 = 0,8 1,25 =2,05

194-64.8÷1.8×0.9 = 194 -36 x0.9 = 194-32.4 = 161.65180-705×6 = 5180 - 4230=950

24÷2.4-2.5×0.8 =10 -2 =8

405×(3213-3189) =405x24 = 9720

125×(97-81) =125x16 =2000

6942 480÷ 3 = 6942 160 = 6782

20 80÷4-20 = 20 20 -20 = 40 -20 = 20

100÷(32-30)×0 = 100 ÷2 x0= 50 x0 = 0

25×4-12×5 = 100 - 60 = 40

70×〔(42-42)÷18〕

=70 x (0÷18) = 70x0 = 0

75×65 75×35 = 75 x (65 35) = 75x100 = 7500

6-1.6÷4= 6 - 0,4 = 5,6

5,38 7,85-5,37= 13,23 - 5,37=7,86

7,2÷0,8-1,2×5=9 - 6 =3

6- 1.19×3-0.43= 6-3.57 - 0.43 = 6- (3.57 0.43) = 6-4 = 2

6.5×(4.8-1.2×4)= 6.5 x(4.8 - 4.8 )=6.5 x0 = 0

0,68×1,9 0,32×1,9 = (0,68 0,32) x1,9 = 1 x 1,9 = 1,9

10,15-10,75×0,4-5,7 = 10,15 - 4,3 - 5,7 = 10,15 -(4,3 5,7)=10,15 - 10 =0,15

5,8×(3,87-0,13) 4,2×3,74 = 5,8 x 3,74 4,2 x 3,74 = (5,8 4,2)x3,74 = 10 x 3,74 = 37,4

32,52-(6 9,728÷3,2)×2,5 = 32,52 - (6 3,04)x2,5 = 32,52 - 9,02 x 2,5 = 32,52 -22,55 = 9,97

(136 64 ) × (65-345÷23) = 200x (65-15) = 200x 50=10000

45,55-(6,82+15,55)

34,52-17,87-12,23

6.43-(1.4-0.57)

23.75-8.64-3.46

17.83-9.5-7.83-0.5

5.38 88.2-2.38 1,8

27,38-5,34+2,62-4,66

21,63-(8,5+9,63)

7,5-2,45+7,5+2,45

5,09－(0,09＋1,23)

9,36－(4,36－3,5)

609-708 306-108 202-198 497-100

99999× 26 33333×22

19175÷59+678

1.3-3.79+9.7-6.21

8×0.4×12.5×2.5

125×（8＋0.8＋0.08）

35 ÷〔78－（25+38）〕

3.35×6.4×2+6.7×3.6

18,7-3,375-6,625

25×1,25×32

1,28 9,8 7,72 10,2

12 ×1951 12×2049

0,64 × 25×7,8 2,2

2÷2,5 2,5÷2

194－64,8÷1,8×0,9

36,72÷4,25×9,9

5180-705×6

24÷2.4-2.5×0.8

671×15-974

469×12 1492

405 ×(3213-31

89)

12* (1/2 2/3 5/6)

1,25×17,6+36,1÷0,8+2,63×12,5

7,5 × 2,3 ＋1.9×2.5

1999＋999×999

75÷〔138÷（100-54）〕

80400－(4300＋870÷15)

240×78÷（154-115）

1437×27+27×563

〔75-（12 18）〕÷15

2160÷〔（83-79）×18〕

325÷13×(266－250)

58870÷(105＋20×2)

[ 37,85-(7,85 6,4)]×30

[192-(54+38)]×67