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The fourth grade math class is an exercise. East China Normal University Edition 13 Page 4400 ÷25, 4400×25 Two ingenious calculation methods! urgent
4400÷25 =44× 100÷25 =44×( 100÷25)=44×4= 176

4400÷25=(4400×4)÷(25 ×4)= 17600÷ 100= 176

4400×25 = 1 100×4×25= 1 100×(4×25)= 1 100× 100= 1 10000

4400×25 =(4000+400)×25=4000×25+400×25= 100000+ 10000= 1 10000

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