AMEP SEND-OFF SET 1

Compute

168＋158＋148＋138＋128 = (a)  

As in the figure. How many squares of different sizes are there?

(a)  

On the grass are 54 white goats and some black goats. Suppose after 8 black goats run away, the number of black goats is more than the number of white goats by 28, how many black goats are there originally?

(a)  

Given that the circumference of a circular flower bed is 100 m. If a red flag is put every 5 m, and a yellow flag is put between every two red flags, how many red flags and yellow flags are there?

(a)  

(a)  

Use four numbers 1, 2, 3, and 4 to form 2-digit numbers whose two digits are different. Arrange these 2-digit numbers in ascending order, and find out how many more is the 11th number than the 5th number.

(a)  

(a)  

Select nine numbers from ten numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 to form a 2-digit number, a 3-digit number, and a 4-digit number so that the sum of these three numbers is 2019. Given that 0 must be selected, find the largest value of the 4-digit number.

(a)  

Fill a number from 1 to 4 in each square to make the numbers in each row and each column different. The number and the math symbols “＋” or “－” at the top left of the frame indicate the sum or the difference of the numbers in each frame. For example,“6＋”means that the sum of the numbers in the frame is 6. Find the 4-digit number ABCD ̅̅̅̅̅̅̅̅.

(a)  

Fill a number in each arrow to represent the amount of different numbers in the pointed direction. The number in a two-way arrow indicates the amount of different numbers in two pointed directions. Find the 4-digit number ABCD.

(a)