无
*注意事项:
综合算式: 综合算式:
19–(3+6)= 19 – 3 + 6 = 9×7–40=
(70–30)÷8= 15+27÷9= 80–20+30=
72÷8+13= 90–5×8= 60+50–20=
49÷7+6 47–63÷7 72÷8+53
(90–86)×9 85–27+19 100–7×4
①50–30÷5 ②9×2÷3 ③40–6+14
=20÷5 =18÷3 =40–20
=4 =6 =20
(3)
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