如题所述
4.44和8.88是倍数关系,可以把8.88写成4.44×2,然后再提取公因数4.44
4.44×102-8.88
=4.44×102-4.44×2
=4.44×(102-2)
=4.44×100
=444
4.44×102-8.88
=4.44×102-4.44×2
=4.44×(102-2)
=4.44×100
=444
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第1个回答 2021-04-28
4.44×102-8.88
=4.44×102-4.44×2
=4.44×(102-2)
=4.44×100
=444
=4.44×102-4.44×2
=4.44×(102-2)
=4.44×100
=444
第2个回答 2021-04-28
4.44*102-8.88
=4.44*(100+2)-8.88
=4.44*100+4.44*2-8.88
=400+8.88-8.88
=400
=4.44*(100+2)-8.88
=4.44*100+4.44*2-8.88
=400+8.88-8.88
=400
第3个回答 2021-04-28
把4.44x102用乘法分配律计算:
4.44x102-8.88
=4.44x(100十2)-8.88
=4.44x100+4.44x2-8.88
=444+8.88-8.88
=444+(8.88-8.88)
=444
4.44x102-8.88
=4.44x(100十2)-8.88
=4.44x100+4.44x2-8.88
=444+8.88-8.88
=444+(8.88-8.88)
=444
第4个回答 2021-04-28
原式=4.44*102–4.44*2
=4.44*(102–2)
=4.44*100
=444
=4.44*(102–2)
=4.44*100
=444