9.4+0.3-6.4 34.82-(4.82+ 15.2) 15.25+4.72+4.75+5.28

=9.4-6.4+0.3 =34.82-4.82- 15.2 =( 15.25+4.25)+(4.72+5.28)

=3+0.3 =30- 15.2 =20+ 10

=3.3 = 14.8 =30

12.7-4.8-5.2 3. 1+25.78+6.9 73.8- 1.64- 13.8-5.36

= 12.7-(4.8+5.2) =25.78+(3. 1+6.9) =(73.8- 13.8)-( 1.64+5.36)

= 12.7- 10 =25.78+ 10 =60-7

=2.7 =35.78 =53

8.053.4+7.6 ( 1.25-0. 125)8 4.8 100. 1 56.599+56.5

=(8+0.05)×3.4+7.6 = 1.25×8-0. 125×8 =4.8×( 100+0. 1) =56.5+0.099+56.5

=26.4+0.0 17+7.6 = 10- 1 =480-0.48 =56.5×2+0.099

=26.4+7.6+0.0 17 =9 =479.52 = 1 13+0.099

=34+0.0 17 = 1 13.99

=34.0 17

Off-mold calculation (2)

7.09 10.8-0.87.09 (9.37+9.37+9.37+9.37) 2.5

=7,08( 10.8-0.8) =4*9.37*2.5

=7.09 × 10 = 10*9.37

=70.9 =93.7

0.68 (5.2 -3.5) 1.25 9.28× 13-9.28×4+9.28

=0.68/ 1.7 ×( 1.25) =9.28*( 13-4+ 1)

=0.4 × 1.25 =9.28* 10

= 0.5 =92.8

0.25×0.57×8 63.4÷2.5÷0.4 0.85×99

=0.25*4*2*0.57 =63.4÷(2.5*0.4) =0.85 ×( 100- 1)

= 1*2*0.57 =63.4÷ 1 =0.85× 100-0.85

= 1. 14 =63.4 =85-0.85

=84. 15

(2.5-0.25)×0.4 3.6-3.6×0.5 9. 16× 1.5-0.5×9. 16

=2.5×0.4-0.25×0.4 =3.6 ×( 1-0.5) =9. 16 ×( 1.5-0.5)

= 1-0. 1 =0.9 ×4 ×0.5 =9. 16 × 1

=0.9 =0.9 ×2 =9. 16

= 1.8

3.9÷( 1.3×5) 52.5×0.63+3.7×5.25 9.5 10 1

= 3.9 ÷ 1.3 ÷5 =5.25×(0.63× 10+3.7)

=3÷5 =5.25× 10

=0.6 =52.5