题文
直接写出得数(约等号的填估算值).
2.8+0.12= 2.5×0.4= 9÷1.5= 4000÷125÷8=
﹣
=
10﹣
=
÷
=
×4÷
×4= 9.19×9.8≈ 27.475÷3.14≈
÷2×0=
×4+
×2=
直接写出得数(约等号的填估算值).
2.8+0.12= 2.5×0.4= 9÷1.5= 4000÷125÷8=
﹣
=
10﹣
=
÷
=
×4÷
×4= 9.19×9.8≈ 27.475÷3.14≈
÷2×0=
×4+
×2=
试题篮
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