4.57+6.43=

7.9× 1 1-7.9=

3. 14×32=

3+3/4-3+3/4 =

10. 1×30=

2÷0.2-2=

3/4× 3/8=

1.8×4×0.5=

1.5- 1.5×0.2=

578+2 16=

85.2-3.25=

3.2- 1/2 =

2/9×8 1=

1/2+ 1/3=

9/4×2=

0.99×9+0.99=

9/4× 1/27=

1.5 ×8+ 1.5 ×2=

82.5-3.25=

7/ 10÷7=

3005-899=

7.25+2.75=

9.8÷98=

0. 125×9×8 =

1/3- 1/4=

5-5/7 =

4/27×9/ 16 =

2-2/3×2=

1/2- 1/6 =

3/5+4/5 =

3/4+ 1/5 =

12-3/8 =

4/5×3/2 =

3/7+3/5=

0.7 hectares = () square meters

4700 ml = () cubic decimeter

34 1- 103=

2 tons 50 kg = () tons

1.2 hours = () hours () minutes.

13×(2+7 13 )

24.06+0.4=

3/8- 1/3 =

(5/6- 1/5)×30=

4/5×25=

3/7+3/5=

1/ 12×6=

2.8×25+ 12×2.5=

12.5×32×2.5=

5-2/9+7/9=

1/2+ 1/3- 1/2+ 1/3

45× 10 1=

5/9×6=

270÷ 18=

1.25-0.25+0.75=