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If 2 workers are sick, the other workers need 3 hours to collect the eggs.. 10:Fin the greatest 4-digit-number which is divisible by both 4 and 7.[r]
(1)Vòng 1 If then = 11 2:The average of 5, 7, 9, 11, 13 is 3: Write > ; = ; < = 4:If = 121 then = 322 5: Find the value of k if The result: k = 6: If and then = 108 7: If A is more than then A = 76 8: Write the missing number: - 2416649 = 9: It took boys hours to clean a house How many boys are needed to clean the house in hours? The result is: - = boys 10:Three years ago, Nora was half as old as Mary is now If Mary is four years older than Nora then Mary is 14 years old now Vòng 1:Calculate: = 13 2:Type the missing number:95 ; 97 ; 99 ; 101 ; 103 3: If N - 25 = 116 then N = 141 4: Fill in the blank with > ; < ; = < 5.If then = 25 6: The sum of two consecutive numbers is The greater number is 75 7:If ; and the average of is then = 18 8: Fill in the blank with > ; = ; < hours 30 minutes < 230 minutes 9: workers take hours to collect eggs If workers are sick, the other workers need hours to collect the eggs 10:Fin the greatest 4-digit-number which is divisible by both and The result is 9996 Vòng 1:The average of , and is 2:Calculate:3 x + : = 11 3: If = then = 57 4: Subtract: = 3000 5: If is divisible by , then the remainder of is 6: How many minutes are there in a day ( hours)? There are 1440 minutes 7: If then = 32 8: Ed earns dollars / hours He will earn 160 dollars in hours 9: If then = 10: It rained five days in June How many days did it not rain in this month? The result is 25 days Vòng 1:If the average of A and is 10 then A = 14 2: Write the number: The result is: 5907 3: The average of 21 and 23 is 22 4: If then = 79 5: The sum of 25 and x is the smallest 3-digit-number x = 6:There are even numbers from to 15 7:If ; ; then = 20 8: Minh is years old If the average of Minh and his mother is 22, then his mother is 35 years old 9: N is a 2-digit number If N + < 20 and N + is divisible by then N = 13 10:Minh and Nam have a total of pencils If Minh has pencils more than Khoa, then Nam and Khoa have a total of pencils Vòng 1:Fill in the blank:2 hours minutes = 122 minutes 2:Caculate: = 3:Write as numerals: Nine thousand eight hundred and three The result is 5803 4: Find if The result is 700 5: If a square has one side's length = cm then its perimeter is 36 cm 6: If and then =0 7: If this fraction expresses the colorless parts of the circle, then x = 8:Find the smallest number in the sequence: 5067, 5760, 6705, 5076 The result is 5067 9: Calculate: 2002 x 2005 - 2002 - 2004 x 2001 = 2004 10:If half of the product of and is three times of N then N = 12 Vòng 1:Fill > , < , =:12 + 13 + 14 < 40 2: The sum of 115 and 541 is 656 (2) 3: If N = 103 then (N + 22) + N = 12 4:1500 cm = 15 m 5: If a = 12 ; b = 15 and c = 39 then the average of a, b, c is 22 6:The product of 25 and 12 has digits 7: 15 kg + 1307 g = 16307 g 8: If 25 < A < 28 and A is divisible by 13 then A = 26 9:If A + B + C = 17 and A + B - C = then the average of A and B is 10:Nam spent 25 dollars to buy pens and pencils If pen costs dollars then pencil costs dollars 11 209 44 18 1170 27 Vong 1:Fill in the blank with <, >, =: 1006 g 3:The area of a rectangle is 4:Calculate: 25 × 148 = < 1.06 kg 2:Convert: 2km 8m = and its width is cm.Its length is 4700 6:It takes oranges to make a cup of juice If Minh has 112 oranges, he can make 8:Calculate: 485 : + 783 : = 516 9:If 2010 < p × < 2014 then p = VÒNG 5:If of Mom’s salary is $23, then her salary is , 16, 32 3:Fill in the blank: 1968 × 2054 = 2054 × 4:If a, b are natural numbers and 999 < a < b < 1002 then the sum of a and b is 6:Calculate: (1 + + + + + 97 + 99) × (45 x - 45 x - 45) = -x= 8:Calculate: then x = + + = 16 times of 231 cup(s) of juice 150 cm 50 504 671 1:Type the missing number in this sequence: 1, 2, 4, 7:If 28 9: The average of all the numbers from to 99 is 10:If the average of three consecutive numbers is then their product is 1:Calculate: 10290 : 30 + 173 = = and the length is 45 cm then the perimeter of that rectangle is 184 m cm 5:Fill in the blank with <, >, =: 231 times of 16 7:If the rectangle area is 1350 2008 2300 dollars (3) (4)