แบบฝึกหัดที่1ถึง3คาบ1

ชื่อ………………………………………………………………………กล่มุ ครู……………………….……………………..รหสั นักศึกษา……………………………………………………………………..….

คณิตศาสตร์ ม.ตน้ พค21001

แบบฝึกหัดท1ี่

บทท่ี1 จานวนและการดาเนินการ

1. จานวนเตม็ มีกชี่ นดิ อะไรบ้าง
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2.ค่าสัมบรู ณ์ของจานวนเตม็ คืออะไร
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3.จงเรียงลาดบั จานวนเตม็ จากน้อยไปหามาก -2, -8, -4, -15, -20, -7
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4.จงเรยี งลาดบั จานวนเตม็ จากมากไปหานอ้ ย 4, -8, 0, -2, 16, -17
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5. จงทาใหเ้ ปน็ ผลสาเร็จ
5.1 (-12) – 7 = ………………………………………………………………………………………………………………………….
5.2 (-8) – (-5) = ………………………………………………………………………………………………………………………….
5.3 5 + (-5) = ………………………………………………………………………………………………………………………….
5.4 5 x (-5) = ………………………………………………………………………………………………………………………….
5.5 (-3) x (-5) = ………………………………………………………………………………………………………………………….

แบบฝกึ หดั ที1่ .2

บทที่2 เศษส่วนและทศนยิ ม

คาสง่ั : จงตอบคาถามต่อไปน้ี

1.เศษสว่ น คอื อะไร

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2 ทศนิยมคืออะไร และแบง่ ออกเป็นกี่ชนิด

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3.จงเขยี นจานวนต่อไปนใ้ี หอ้ ยใู่ นรูปของทศนยิ ม

3.1 6 3.3 8

0 2

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3.2 2 3.4 7

00 00

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4. จงหาผลของจานวนตอ่ ไปน้ี

4.1

98

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4.2

98

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4.3 ×

98

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4.4 9 8
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5. การบวก การลบ การคูณ และ การหารทศนิยม มหี ลักเกณฑ์แบบใด จงอธบิ าย

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แบบฝึกหัดที1่ .3

บทที3่ เลขยกกาลัง

1.จงอธบิ ายความหมายและการเขยี นเลขยกกาลัง

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2. จานวนต่อไปนอี้ ่านวา่ อย่างไร

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2.1 8

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2.2

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3. จงเขยี นจานวนตอ่ ไปน้ีในรูปสัญกรณว์ ิทยาศาสตร์

3.1 23,000,000,000 =………………………………………………………………………………………………………………………

3.2 4,000,000 =………………………………………………………………………………………………………………………………

4.สญั กรณว์ ทิ ยาศาสตรใ์ นแตล่ ะข้อต่อไปนแี้ ทนจานวนใด

4.1 2 x

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4.2 4.52 x 2

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5. จงหาผลลพั ธต์ ่อไปนี้

5.1 2

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5.2 ( 8) ÷ ( )

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5.3 6÷3

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