9000÷72×( 1.25×0.7×8)=9000÷72×7= 125×7=875

1.25×(8+ 10)= 1.25×8+ 1.25× 10= 10+ 12.5=22.5

1.24+0.78+8.76=( 1.24+8.76)+0.78= 10+0.78= 10.78

1/2-(4/5- 1/2)= 1/2+ 1/2-4/5= 1-4/5= 1/5

4800÷25÷4 = 4800÷(25x 4)= 4800÷ 100 = 4800÷ 100 = 48

2/5-(3/8-3/5)=2/5+3/5-3/8= 1-3/8=5/8

3/4-(3/7- 1/4)=3/4+ 1/4-3/7= 1-3/7=4/7

3.2x 0. 125 x 2.5 = 0. 125 x8x(0.4x 2.5)= 1x 1 = 1

0.4× 125×25×0.8=(0.4×25)×( 125×0.8)= 10× 100= 1000

1.25×(8+ 10)= 1.25×8+ 1.25× 10= 10+ 12.5=22.5

9 123-( 123+8.8)=9 123- 123-8.8=9000-8.8=899 1.2

1.24×8.3+8.3× 1.76=8.3×( 1.24+ 1.76)=8.3×3=24.9

9999× 100 1=9999×( 1000+ 1)=9999× 1000+9999× 1= 10008999

14.8×6.3-6.3×6.5+8.3×3.7=( 14.8-6.5)×6.3+8.3×3.7=8.3×6.3+8.3×3.7=8.3×(6.3+3.7)

=8.3× 10=83

1.24+0.78+8.76=( 1.24+8.76)+0.78= 10+0.78= 10.78

933- 157-43=933-( 157+43)=933-200=733

482 1-998=482 1- 1000+2=3823

32× 125×25=4×8× 125×25=(4×25)×(8× 125)= 100× 1000= 100000

1.8+ 18÷ 1.5-0.5×0.3= 1.8+ 12-0. 15= 13.8-0. 15= 13.65

6.5×8+3.5×8-47=52+28-47=80-47=33

3.7x 2.56-2.3 = 9.472-2.3 = 7. 172

1.24+0.78+8.76=( 1.24+8.76)+0.78= 10+0.78= 10.78

1/2-(4/5- 1/2)= 1/2+ 1/2-4/5= 1-4/5= 1/5

4800÷25÷4 = 4800÷(25x 4)= 4800÷ 100 = 4800÷ 100 = 48

2/5-(3/8-3/5)=2/5+3/5-3/8= 1-3/8=5/8

3/4-(3/7- 1/4)=3/4+ 1/4-3/7= 1-3/7=4/7

3.2x 0. 125 x 2.5 = 0. 125 x8x(0.4x 2.5)= 1x 1 = 1

0.4× 125×25×0.8=(0.4×25)×( 125×0.8)= 10× 100= 1000

1.25×(8+ 10)= 1.25×8+ 1.25× 10= 10+ 12.5=22.5

9 123-( 123+8.8)=9 123- 123-8.8=9000-8.8=899 1.2

1.24×8.3+8.3× 1.76=8.3×( 1.24+ 1.76)=8.3×3=24.9

6 1-( 1.25+2.5×0.7)=6 1-3=58

[( 10-0.8)+9.85]-2÷0. 125= 19.05-2÷0. 125= 19.05- 16=3.05

408- 12×24? =? 408? -? 288? =? 120(46+28)×60? =? 74? x？ 60? =? 4440

42×50- 17? =? 2 100-? 17? =? 2083

32+ 105÷5? =? 32? +? 2 1? =? 53

420×(327-238)? =? 420? x？ 89? =? 37380

(4 12 1+2389)÷7? =? 65 10? ÷7? =? 930

3.4 16÷(0.0 16×35)? =? 3.4 16? ÷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? =? 0.5 14

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? =? 6.2 16? + 1? =? 7.2 16

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? =? 2 1.6? ÷0. 18? =? 120

2.88 1÷0.43-0.24×3.5? =? 6.7? -? 0.24? x3.5？ =? 6.7? -? 0.84? =? 5.86

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)? x 1.9？ =? 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

20×[(2.44- 1.8)÷0.4+0. 15]? =? 20x？ (0.64? ÷0.4? +0. 15)=? 20x( 1.6？ +0. 15)? =? 20? x 1.75？ =? 35

28-(3.4+ 1.25×2.4)? =? 28? -? (3.4? +? 3)? =? 28? -? 6.4? =? 2 1.6

2.55×7. 1+2.45×7. 1? =? (2.55? +? 2.45)? x7. 1？ =? 5? x7. 1=35.5

0.8×〔 15.5-(3.2 1+5.79)〕? =? 0.8? x？ ( 15.5? -? 9)? =? 0.8? x？ 6.5? =? 5.2

(3 1.8+3.2×4)÷5? =? (3 1.8? +? 12.8)÷5? =? 44.6÷5? =? 8.92

3 1.5×4÷(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? =? 16 1.65 180-705×6? =? 5 180? -? 4230=950

24÷2.4-2.5×0.8? = 10? -2=8

405×(32 13-3 189)? =405x24？ =? 9720

125×(97-8 1)? = 125x 16？ =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)? =? 75x 100？ =? 7500?

6- 1.6÷4=? 6-? 0.4? =? 5.6

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)=? 200 times (65- 15)? =? 200 times? 50= 10000