حلول الأسئلة
السؤال
قدر حل المعادلة س ٢ = ٧٧ إلى أقرب عدد صحيح.
الحل
س٢ = ٧٧
س =
٦٤ < ٧٧ < ٨١
٨ < < ٩
٧٧ أقرب إلى ٨١ منها إلى ٦٤
س = ٩ أو - ٩
شاهد حلول جميع الاسئلة
حل أسئلة مراجعة تراكمية
جبر: ضع إشارة > أو < أو = في
لتكون كل جملة مما يأتي صحيحة:
٢٥)
٣,٥
٣,٥
٣,٤ < ٣,٥
٢٦)
٦,٤
٦,٤
٦,٤٠٣ > ٦,٤
٢٧)
format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20font-family%3D%22math1e97a4f04ef1b914f6a1698caa3%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2232.5%22%20y%3D%2224%22%3E%26%23x25CB%3B%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%222.5%22%20x2%3D%2216.5%22%20y1%3D%2218.5%22%20y2%3D%2218.5%22%2F%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%229.5%22%20y%3D%2212%22%3E%26%23x661%3B%26%23x667%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%229.5%22%20y%3D%2232%22%3E%26%23x663%3B%3C%2Ftext%3E%3C%2Fsvg%3E)
٥,٦ =
٥,٦٦٦٦ = ٥,٦٦٦٦
٢٨) format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cpolyline%20fill%3D%22none%22%20points%3D%22-2%2C-16%200%2C-16%205%2C0%208%2C-6%22%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20transform%3D%22translate(60.5%2C18.5)%22%2F%3E%3Cpolyline%20fill%3D%22none%22%20points%3D%225%2C0%208%2C-6%2010%2C-5%22%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20transform%3D%22translate(60.5%2C18.5)%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2242.5%22%20x2%3D%2259.5%22%20y1%3D%222.5%22%20y2%3D%222.5%22%2F%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2250.5%22%20y%3D%2216%22%3E%26%23x665%3B%26%23x665%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22math15efdff37155d4c705bef49bb2e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2232.5%22%20y%3D%2216%22%3E%26%23x25CB%3B%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2212.5%22%20x2%3D%2218.5%22%20y1%3D%223.5%22%20y2%3D%223.5%22%2F%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2215.5%22%20y%3D%2216%22%3E%26%23x664%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22math15efdff37155d4c705bef49bb2e%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%229.5%22%20y%3D%2216%22%3E.%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%223.5%22%20y%3D%2216%22%3E%26%23x667%3B%3C%2Ftext%3E%3C%2Fsvg%3E)
٧,٤١٦ > ٧,٤
٢٩) جبر: قدر حل المعادلة س٢ = ٧٧ إلى أقرب عدد صحيح.
س٢ = ٧٧
س =
٦٤ < ٧٧ < ٨١
٨ < < ٩
٧٧ أقرب إلى ٨١ منها إلى ٦٤
س = ٩ أو - ٩
٣٠) هندسة: إذا كانت مساحة المربع الكبير في المجاور ٤٩م٢، فأوجد مساحة المربع الصغير.
- طول ضلع المربع الكبير =
= ٧م.
- طول ضلع المربع الصغير = ٧ - ٤ = ٣م.
- مساحة المربع الصغير = ٢٣ = ٩م٢
مهارة سابقة: حل كل معادلة مما يأتي، وتحقق من صحة حلك:
٣١) ٥٧ = س + ٢٤
٥٧ -٢٤ = س + ٢٤ - ٢٤
س = ٣٣
التحقق:
٥٧ = ٣٣ + ٢٤
٥٧ = ٥٧ C
٣٢) ٨٢ = ٥٤ + ص
٨٢ - ٥٤ = ٥٤ + ص - ٥٤
ص = ٢٨
التحقق:
٨٢ = ٥٤ + ٢٨
٨٢ = ٨٢ C
٣٣) ٧١ = ٣٥ + ع
٧١ - ٣٥ = ٣٥ + ع - ٣٥
ع = ٣٦
التحقق:
٧١ = ٣٥ + ٣٦
٧١ = ٧١ C
٣٤) ٦٤ = ب + ٢٧
٦٤ - ٢٧ = ب + ٢٧ - ٢٧
ب = ٣٧
التحقق:
٦٤ = ٣٧ + ٢٧
٦٤ = ٦٤ C