[TH-TOÁN 4&5] Review math for grade 4 and 5

Review Math for Grade 4 and 5
TIME: 60 MINUTES
1) Find a and b + 5:
2) Find a – b :
3) Find b:
4) Find a:
5) Find a:
6) Find b + 5:
7) The shop has some rice . The first day sold 1/3 of rice and 5 kg. The rice on the
second day sold if another 3 kg shall be 3/7 the remaining rice . The third day of
the rice sold by the remaining 4/5 and 2 kg . At the time remaining true 1 / 4 a
quintal . Count of rice each day sold.
8) Find X:
9) Find X:
10) Find X:= x x 15
11) Find X:
12) Find X: abc + cba = 1332 ( a, b , c are three consecutive natural number ) ; x
= abc + 102
13) Find X: 4x87y divisible by 2 ; 5 ; 9
14) From 1 to 2015 we use ……… digits including …… digits 1.
15) The 2003th digit in sequence: 2; 4; 6; 8 ..; 2000; 2002 is ……
16) Find 2 numbers in sequence 6; 24; 60; 120; 210; …; …
17) Mai has 25 marbles, Binh’s is less than the average of their is 3 marbles. Lan
has the number of marbles equals the average of theirs. Quan’s is less than the
average of theirs is 4marbles. Find the average of Lan and Quan’s marbles.
18) In the sequence of word ASEANASEANASEAN…. Hoa colors turns green, red,
purple, green, red, … Find the color of 2052th word in the sequence.
19) Given the sequence of numbers 1; 3; 5; ...; x. Find x indicates the number of
digits in sequence over 4 times the number of sequence.
20) 2 years ago, dad’s age was over 6 times son’s. Next 2 years, dad’s age will be
over 4 times son’s. Find the ratio of the dad’s and son’s.