Tài liệu luyện thi toán TIMO dành cho Khối 1 - Topic: Gauss

 PRIMARY 1 - Topic: Gauss 
Practice 1: Find the value of 
 2 + 2 + 2 + 2 + 2 
Practice 2: Find the value of 
 1 + 1 + 1 + 1 + 1 + 1 + 1 
Practice 3: Find the value of 
 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 
Practice 4: Find the value of 
 4 + 1 + 0 + 4 + 1 + 0 + 4 + 1 + 0 
Practice 5: Find the value of 
 5 + 4 + 5 + 4 + 5 
Practice 6: Find the value of 
 2 + 3 + 2 + 3 + 2 + 3 + 2 + 3 + 2 + 3 
Practice 7: Find the value of 
 7 + 9 – 6 + 7 + 9 – 6 + 7 + 9 – 6 + 7 + 9 – 6 
Practice 8: Find the value of 
 2 + 3 – 4 + 2 + 3 – 4 + 2 + 3 – 4 + 2 + 3 – 4 
Practice 9: Find the value of 
 5 – 5 + 5 – 5 + 5 – 5 + 5 – 5 + 5 
 Practice 19: Find the value of 
 1 + 2 + 3 + 4 + 5 + 4 + 3 + 2 + 1 
Practice 20: Find the value of 
 1 + 2 + 3 + 4 + 5 + 6 + 5 + 4 + 3 + 2 + 1 
Practice 21: Find the value of 
 1 + 9 + 1 + 2 + 3 + 4 + 5 + 6 
Practice 22: Find the value of 
 0 + 2 + 4 + 6 + 8 + 10 
Practice 23: Find the value of 
 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 
Practice 24: Find the value of 
 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 
Practice 25: Find the value of 
 11 + 22 + 33