решить номер 1029,1030,1031

1029:

2.65×0.4=1.06

0.52×0.6=0.312

43.6×0.9=39.24

76.3×2.4=183.12

20.8×5.9=112.72

1.72×63=108.36

1.93×0.75=1.4475

43.3×0.23=9.959

0.07×12.4=0.868

10.62×3.24=34.4088

0.872×1.71=1.49112

2.006×2.06=4.13236

1030:

(3.6+7.9)×3.9=11.5×3.9=44.58

(7.3+10.3)×8.5=75.19×8.5=639.115

9.4×(17.8-8.9)=9.4×8.9=83.66

12.5×(27.8+12.1)=12.5×39.9=498.75

6.14×(4.8+14.34)=6.14×19.14=117.5196

7.293×(9.3-8.6)=7.293×0.7=5.1051

1031:

4.25×9.6=40.8

7.4×(12.8+59.4)=7.4×72.2=534.28

7.3×9.2+31.2×1.5=67.16+46.8=113.96