1. Which number is made up with 1 hundred, 4 tens and 3 ones?
(A) 413 (B) 143 (C) 341 (D) 1043 (E) 134
2. A pyramid has 12 edges. What is the shape of the base?
(A) a triangle (B) a square (C) a pentagon
(D) a hexagon (E) an octagon
3. Ann has a cloth bag with 20 balls, numbered from 1 to 20, in it. She selects a ball
from the bag. Which of the following events is the most likely?
(A) She selects ball number 1.
(B) She selects an odd-numbered ball.
(C) She selects a ball with the digit 2 in the number.
(D) She selects ball 9 or 10.
(E) She selects ball number 20.
4. Jane is given a large block of chocolate which is made up of square pieces and is 6
pieces wide and 8 pieces long.
.............................................................................................................................................................................................................................................................................. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .
6
8
Chocolate
She eats all the outside pieces. What fraction of the block is left?
(A)
1
4
(B)
1
3
(C)
1
2
(D)
2
3
(E)
3
Loga
Sinh Học lớp 12
