แบบฝึกทักษะที่ 2
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This document is a math worksheet for grade 2 students on rational and irrational numbers. It contains 5 decimal number conversion problems where students are asked to write the decimals as fractions in simplest form. The decimals given are: 1) 3.4, 2) 0.639, 3) 0.846153, 4) 2.1263, and 5) 0.350. There is space under each problem for students to show their work.
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แบบฝึกทักษะที่ 2
- 1. แบบฝึกทักษะที่ 2 วิชา คณิตศาสตร์ เรือง จานวนตรรกยะและจานวนอตรรกยะ ่ ชั้นมัธยมศึกษาปีที่ 2 ชื่อ.....................................................................ชัน ้ ..........................................เลขที......................... ่ 1. ให้นกเรี ยนเขียนทศนิยมซ้ ำต่อไปนี้ในรู ปเศษส่ วนให้ถูกต้อง ั 1) 3.4 ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... 2) 0.639 ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ...........................................................................................................................................................
- 4. ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... 2. ให้นกเรี ยนนำจำนวนต่อไปนี้ ลงในช่องว่ำงให้ถูกต้อง ั 0 - 16 0.515115111… 8.0 0. 001 9 -2.50… 1 7 3 2 4 9 1 2 24 จำนวนจริ ง จำนวนตรรกยะ จำนวนเต็ม เศษส่ วน …………………… …………………… …………………… …………………… จำนวนเต็มลบ ……………………… ……………………… ……………………… ……………………… จำนวนอตรรกยะ ……………………………… ……………………………… ทศนิยมซ้ ำ ……………………………… ……………………… ……………………………… ……………………… …………………………….. ……………………… ……………………… ศูนย์ …………………… …………………… …………………… ………………….. จำนวนเต็มบวก …………………………… …………………………… …………………………… …………………………