1
7
3
8
5
2
6
4
28
×7<45 8×<36 29>×7
6×<53 54>×8 6×<40
2×5= 1×4= 3×4= 2×3=
3×3= 2×4= 3×5= 4×5=
86-6= 30+45= 70-40= 39+8=
①101×32
②2.74+8.67+7.26+11.33
③18.8﹣5.8﹣﹣4.2﹣
④×+÷
⑤0.888×125×73+999×3
⑥4﹣[3.75×(1.2﹣)+]
①2021÷1.25÷
②5.74×12.5%+1.26÷8+
③(-0.6)÷(-)
④0.8÷[(+)×]