Mid-Term Exam G6国际学校数学试卷

Choose
1、When subtracting fraction:( ).
A) Invert the second fraction and multiply
B) Multiply by 10
C) Find a common denominator , and subtract the numerator D) Bottom number divided by the top number
2、Sum of two negative numbers is always ( ).
A)Positive B)Negative C)0 D)1
3、Round 6285 to the nearest hundred ( ).
A)6000 B)6300 C)6200 D)7000
4、Which of the following decimal numbers is equivalent to 5/8( ).
A)0.625 B)0.58 C)58 D) 62.5
5、The lowest common multiple of 5 and 7, is …( ).
A)5 B)35 C)12 D)7
6、What is the greatest common factor of 36 and 90？( ).
A)6 B)18 C)36 D)180
7、7X2 is a three digit number and X is the missing digit. If the number is divisible by 6, the missing digit is( ).
A)4 B)3 C)2 D) 5
8、The first five terms in Dale ,s pattern are the following,What are the next 3 terms? ( ).
A)27, 34, 42 B)29, 37, 45 C)34, 55, 89 D)34, 55, 99
9、What smallest number should be subtracted from 9805 so that it is divisible by 8?( ).
A)3 B)4 C)5 D)7
10、The large square below was divided into smaller squares of equal size.What fractional part of the large square is represented by the number of small squares that contain the number 7?( ).
A)9010 B)109 C)1007 D)101 11、Mrs. Johnson plans to cut a 6 foot (ft) board into pieces that are 3/4 ft long, as shown in the diagram below.How many pieces can she get from this board?( ).
A)9 pieces B)8 pieces C) 6 pieces D)4 pieces 12、The table shows the number of pies eaten by the top four contestants in a middle school pie -eating contest.Which of the following lists the number of pies eaten in order from least to greatest?( ).
A) 415, 215, 835, 325 B)325, 215, 835, 415 C)325, 415, 835,215 D)415, 835,215,3
25 13、Which expression shows a prime factorization? ( ).
A)2×9×11 B)2.5× 7× 3 C)1×11×13 D)2× 2×2×3 × 11
State true or false:
1)All natural numbers are whole numbers.
2)All whole numbers are natural numbers.
3)The predecessor of a two digit number is never a single digit number.
4)1 is the smallest whole number.
Find the GCF of each.
1) 8, 36, 46 2) 30, 20, 50 3) 30, 40, 20 4) 15, 45, 30
Find the LCM of each.
1) 32, 40, 16 2) 32, 40, 36 3) 24, 30, 36 4) 10, 35, 25
Short Answer.
1、Jacob is making emergency preparedness kits to share with friends. He has 54 bottles of water and 42 cans of food, which he would like to distribute equally with none left over. What is the greatest number of kits Jacob can make? How many bottles of water will each have? How many cans of food will each have?
2、Brittany is thinking of a number that is divisible by 12 and 8. What is the smallest possible number that Brittany could be thinking of?
3、The Dollar General sells hand towels in sets of 12 and bath towels in sets of 4. If the store sold the same number of each type of towel, what is the smallest number of sets of each type of towel that the store must have sold?
Place these rational decimal numbers in order form the least to greatest。