wmi_Grade3_A5 on Day:.........Month:..........Year:...........

Total Core =

Question 1: 202/2 + 20*22 = ?

Question 2:

Question 3: As shown below, the area of each of 8 small rectangles is 36cm2. Find the area of tick sing in cm2.

Question 4:

Question 5: Given twenty balls which are merked from 1~20. At least how many of them should be picked to make sure that the sum of the numbers on two of the balls is 20?.