2010 MATH CHALLENGEGRADE 4 Name: ___________________________________ School________________________ Solve and write the answer on the blank before or below the number.
___________1. ___________1. Write ³ninety-eight ³ninety-eight thousand thousand eighty-six eighty-six in figures. ___________2. ___________2. What is the value of of 8 in 876 550? ___________3. ___________3. How How many times as great is the underlined underlined 5 in 3 578 352 than the 5 that is not underlined? ___________4. ___________4. Round Round each each addend addend to the nearest hundred hundred and and estimate estimate the sum: sum: 749 + 465 + 893 ? ___________5. ___________5. What is the smallest smallest digit digit that can can be placed placed in the blank in 8__52 > 8 458? ___________6. ___________6. 4 x 10 + 8 x 10 + 9 x 10 + 5 x 10 + 8 x 10 + 7 = __________ __________ __ ______ _______ _____7. _7. Wri Write MDCCCLXXXVI in Hin Hindu Arabic. __ ______ _______ _____8. _8. How many many P100 bill ills are equa equall to two P1 000 bills?\ ls?\ ___________9. ___________9. Add Add 56 to the product product of 12 x 18. ___________10. ___________10. Change Change 6 5/7 to an improper improper fraction fraction ___________11. ___________11. Change Change 79/9 79/9 to a mixed mixed number with with the fraction fraction in lowest term. term. ___________12. ___________12. Mother Mother cut cut a cake into 36 equal equal parts. parts. She gave gave 8 pieces pieces to their their neig neighb hbor or and and serv se rved ed 7 pieces pieces for snacks. snacks. What fraction fraction of the the cake cake remained? Give answer in lowest term? ___________13. ___________13. What is the smallest smallest number number that can be formed formed with 0,2,3,8,9? 0,2,3,8,9? ___________14. ___________14. What number divisible divisible by 9 is greater than than 50 but less less than 60? 60? ___________15. ___________15. If 13/20 =N/100, =N/100, what what is N? ___________16. ___________16. Write 8.9 as a mixed number. number. ___________17. ___________17. Write ³seventy-five ³seventy-five pesos pesos and sixty-six sixty-six centavos centavos with with the peso peso sign. ___________18. ___________18. Four Four P100 bills are equal to how how many P5 P5 coins. __ ______ _______ _____19 _19. What What unit will you use to meas measur ure e the the weigh ight of a 5-peso eso coin oin? ___________20. ___________20. How How many days were were there in in the year year 2003? ___________21. ___________21. How How many years years are there there in 6.5 6.5 decades decades
__________ __________ 2 8 . I f 3 8 2 . 2 8 x 1 0 0 = 3 . 8 2 2 8 x N , w h a t i s N ? __________ __________ 29 2 9 . A t y p h o o n i s m o v i n g a t a s p e e d o f 8 7 k m p e r h o u r . A t t h i s r a t e , how far will the typhoon be in 4.5 hours? __________ __________ 30 30 .6 .0 7 i s e qu al t oho w ma n y hu nd red t h s? __________ __________ 31 31 .W hat i s t he rat io of 3 2 hou r s t o 2 da ys? __________ __________ 32 32 .I n a n ut m i xt u re, pe anu t s : ca sh e ws : p eca ns = 5:2 : 3. Ho w manykilograms of cashew nuts are in a 50 kg mixture? __________ __________ 33.R 33 .Ros ose e can ca n type ty pe 60 word wo rd s pe r m inut in ut e. At th at ra te , ho w long lo ng will wi ll it take her to to type 540 words? __________ __________ 34 34 .W hat i s t he a ve ra ge of L i za if s he go t 9 2, 89 , 8 5 and 90 in four tests? __________ __________ 3 5 . C h a n g e 1 3 / 2 0 t o p e r c e n t . __________ __________ 36 36 .Th e re a re 45 s tud en t s i n a c la ss. One Mo nda y, 20 % of th e c l a s s were absent. How many students were present? __________ __________ 37 3 7 . A m o v i e l a s t e d f o r o n e h o u r a n d 4 5 m i n u t e s . I t e n d e d a t 1 0 : 3 0 p.m.
What time did it begin? __________ 38 . T h e p e r i m e t e r o f a s q u a r e i s 4 8 c m . W h at i s i t s a re a ? __________ 3 9 . T h e a r e a o f a r e c t a n g l e i s 1 0 8 c m 2. If one side is 12 cm, find the perimeter. __________ 40 . Ho w m a n y n u m b e r s f ro m 3 0 t o 6 0 c o n t a i n t h e d i g i t 3 ?
