直接写结果(有约等号的只要求估算).145+998=2.5×0.4=0.99×9+0.99=79×31≈35.9÷6≈0.32-0.22=3a+4.2a=56-12=24-24×14=13×23÷13

题目简介

直接写结果(有约等号的只要求估算).145+998=2.5×0.4=0.99×9+0.99=79×31≈35.9÷6≈0.32-0.22=3a+4.2a=56-12=24-24×14=13×23÷13

题目详情

直接写结果(有约等号的只要求估算).
145+998=
2.5×0.4=0.99×9+0.99=79×31≈35.9÷6≈
0.32-0.22=3a+4.2a=
5
6
-
1
2
=
24-24×
1
4
=
1
3
×
2
3
÷
1
3
=
题型:解答题难度:中档来源:不详

答案

145+998=11432.5×0.4=10.99×9+0.99=9.979×31≈240035.9÷6≈6
0.32-0.22=0.053a+4.2a=7.2aclass="stub"5
6
-class="stub"1
2
=class="stub"1
3
24-24×class="stub"1
4
=18
class="stub"1
3
×class="stub"2
3
÷class="stub"1
3
=class="stub"2
3

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