11 Piv txwv ntawm cov lus nug ntsuas
1. Cov cuab yeej siv los ntsuas qhov ntev yog ...
A. daim ntawv qhia txog kev nyiaj txiag
B. tus kav
C. lub moos nres
D. nplai
Kev Sib Tham
Qhov sib npaug = lub cuab yeej ntsuas qhov hnyav
Tus kav = lub cuab yeej ntsuas qhov ntev
Lub moos nres = lub cuab yeej ntsuas lub sijhawm
Cov nplai = cov cuab yeej ntsuas qhov hnyav
Cov lus teb yog B.
2. Kev Ua Si kev ntsuas uas siv cov chav txheem yog ...
A. qhov ntev ntawm lub rooj los ntawm qhov ntev
B. ntim ntawm yam khoom nrog iav
C. thaj av uas muaj rab hmuv
D. lub sijhawm nrog lub moos nres
Kev Sib Tham
Cov chav txheem yog cov chav raug cai uas lawv siv tau lees paub thoob ntiaj teb.
Cov lus teb yog D.
3. Xyoo 2008 Kev Xeem Thoob Tebchaws Txog Kev Tshawb Fawb Qib Siab P37 No. 1
Saib daim duab hauv qab no!
Qhov tshwm sim ntawm kev ntsuas qhov ntev ntawm tus pas yog ....
A. 28,5 cm
B. 28,0 cm
C. 17,5 cm
D. 11,0 cm
Kev Sib Tham
Tus ntsuas hauv daim duab saum toj no ntev 30 cm. Qhov nrug ntawm ob txoj kab ntsug uas sib txuas ua ke yog 0,5 cm.
Qhov ntev ntawm tus pas = 28,5 cm – 17,5 cm = 11,0 cm
Cov lus teb yog D.
4. Saib daim duab hauv qab no!
Muab ib lub khob ntsuas uas muaj dej puv (daim duab 1) rau hauv, thiab qib dej nce siab raws li qhia hauv (daim duab 2). Qhov ntim ntawm yam khoom uas nyob hauv qab dej yog...
A. 20 ml
B. 50 ml
C. 70 ml
D. 120 ml
Kev Sib Tham
Qhov ntim dej uas raug tshem tawm yog 70 ml – 50 ml = 20 ml.
Qhov ntim ntawm yam khoom uas raug muab tso rau hauv = qhov ntim ntawm dej uas raug tshem tawm = 20 milliliters.
Cov lus teb yog lawm yog A.
5. Saib daim duab sib npaug hauv qab no! Los ntawm cov txiaj ntsig ntawm kev ntsuas qhov hnyav, qhov hnyav ntawm cov khoom yog ...
A. 521 grams
B. 530 grams
C. 620 grams
D. 1.520 grams
Kev Sib Tham
Nws paub tias:
1 kilogram = 1000 grams
Nug:
Lus teb:
Ob sab caj npab ntawm qhov sib npaug sib npaug yog li qhov hnyav ntawm cov khoom = 1000 grams + 500 grams + 20 grams = 1520 grams
Cov lus teb yog D.
6. Ua tib zoo saib cov txiaj ntsig ntawm kev ntsuas qhov hnyav uas tus tub ntxhais kawm tau ua raws li pom hauv daim duab ntawm sab!
Qhov hnyav ntawm yam khoom P yog…..
A. 0,115 kg 
B. 1,15 kg
C. 11,5 Kg
D. 115,0 kg
Kev Sib Tham
Qhov hnyav ntawm yam khoom P = 1000 grams + 100 grams + 50 grams = 1150 grams = 1,150 kilograms
Cov lus teb yog B.
7. Ua tib zoo saib cov txiaj ntsig ntsuas hauv qab no!
Qhov hnyav ntawm yam khoom M raws li cov txiaj ntsig ntsuas yog…
A. 1,202 kg
B. 1,220 kg
C. 1,440 Kg
D. 12.000 kg
Kev Sib Tham
Qhia txog txhua chav ntawm pawg hauv International System.
200 grams = 200/1000 kilograms = 0,2 kilograms
Qhov hnyav ntawm yam khoom M = 20 kilograms + 1 kilogram + 0,2 kilograms = 21,2 kilograms
Tsis muaj lus teb tseeb.
8. 
Saib daim duab!
Yuav kom cov nplai sib npaug, muab ib qho hnyav ntxiv rau ntawm lub phaj sab xis nrog qhov hnyav ntawm….
A. 300 grams
B. 450 grams
C. 500 grams
D. 550 grams
Kev Sib Tham
Nws yog paub
Sab laug disc:
Qhov hnyav = 1,05 kg = (1,05)(1000 grams) = 1050 grams
Lub disc sab xis:
Qhov hnyav = 500 grams + 50 grams = 550 grams
Lo lus nug: Qhov hnyav ntawm qhov hnyav ntxiv rau lub phaj sab xis kom lub nplai sib npaug
Lus teb:
Yuav kom qhov sib npaug sib npaug, qhov hnyav ntawm qhov hnyav ntawm lub disc sab laug yuav tsum sib npaug rau qhov hnyav ntawm qhov hnyav ntawm lub disc sab xis. Qhov sib npaug yuav sib npaug tom qab ntxiv X qhov hnyav rau lub disc sab xis nrog qhov hnyav ntawm 1050 grams - 550 grams = 500 grams.
Cov lus teb yog C.
9. 
Saib daim duab ntawm daim ntawv qhia nyiaj tshuav hauv qab no!
Yuav kom lub nplai sib npaug, tus nqi ntawm qhov hnyav X uas yuav tsum tau ntxiv rau phaj B yog….
A. 250 g
B. 500 g
C. 750 g
D. 1000 g
Kev Sib Tham
Nws yog paub
Sab laug disc:
Qhov hnyav = 1,5 kg = (1,5)(1000 grams) = 1500 grams
Lub disc sab xis:
Qhov hnyav = 250 grams + 250 grams = 500 grams
Lus Nug: Qhov hnyav ntawm qhov hnyav X
Lus teb:
Yuav kom qhov sib npaug sib npaug, qhov hnyav ntawm qhov hnyav ntawm lub disc sab laug yuav tsum sib npaug rau qhov hnyav ntawm qhov hnyav ntawm lub disc sab xis. Qhov sib npaug yuav sib npaug tom qab ntxiv X qhov hnyav rau lub disc sab xis nrog qhov hnyav ntawm 1500 grams - 500 grams = 1000 grams.
Cov lus teb yog D.
10.
Saib daim duab ntawm daim ntawv qhia nyiaj tshuav hauv qab no!
Los ntawm cov txiaj ntsig ntawm kev ntsuas qhov hnyav, qhov hnyav ntawm qhov hnyav x yog ....
A. 380 grams
B. 400 grams
C. 580 grams
D. 620 grams
Kev Sib Tham
Nws yog paub
Sab laug disc:
Qhov hnyav = 1 kg = (1)(1000 grams) = 1000 grams
Lub disc sab xis:
Qhov hnyav = 400 grams + 20 grams = 420 grams
Lus Nug: Qhov hnyav ntawm qhov hnyav X
Lus teb:
Yuav kom qhov sib npaug sib npaug, qhov hnyav ntawm qhov hnyav ntawm lub disc sab laug yuav tsum sib npaug rau qhov hnyav ntawm qhov hnyav ntawm lub disc sab xis. Qhov sib npaug yuav sib npaug tom qab ntxiv X qhov hnyav rau lub disc sab xis nrog qhov hnyav ntawm 1000 grams - 420 grams = 580 grams.
Cov lus teb yog C.
11. Saib daim duab ntawm lub moos nres hauv qab no! Ib tug neeg ncaws pob ntsuas lub sijhawm ntawm nws qhov kev cob qhia khiav siv lub moos nres. Lub sijhawm khiav uas lub moos nres qhia yog ...
A. 1.230 vib nas this
B. 1.160 vib nas this
C. 630 vib nas this
D. 570 vib nas this
Kev Sib Tham
Lub sijhawm khiav = 20 feeb + 30 vib nas this = (20 feeb x 60 vib nas this) + 30 vib nas this = 1200 vib nas this + 30 vib nas this = 1.230 vib nas this.
Cov lus teb yog lawm yog A.
Qhov chaw nug lus:
Cov Lus Nug Txog Kev Xeem Thoob Tebchaws ntawm Tsev Kawm Ntawv Theem Nrab Qib Siab/Islamic Tsev Kawm Ntawv Theem Nrab Qib Siab Science
