Each row has two pairs of numbers that add up to 25. Find the pairs of numbers that add up to 25 and circle them. ……

1. Find the value (数值) of the shapes (形状).2. Find the pattern (规律) and add numbers to each row.Answers: ……

If you spell all the numbers and try to find the letter "A" you will have to count to one thousAnd. ……

If you spell all the numbers and try to find the letter “A”, you will have to count to one thousAnd. ……

In each square, one number is different from the others in some way. Find the different number.In each square, one number is different from the others in some way. Find the different number.  ……

In each square, one number is different from the others in some way. Find the different number.Answers:1. 36 (The other numbers are all the exponents (幂次方) of number 2)2. 32 (The other numbers all ……

In each square, one number is different from the others in some way. Find the different number.Answers:1. 36 (The other numbers are all the exponents (幂次方) of number 2).2. 32 (The other numbers all ……

Help Eric the dog find the apple. He can only find it if he follows a path of apples with numbers that add up to 10. Only one path is correct. Can you help him? ……

Help Eric the dog find the apple. He can only find it if he follows a path of apples with numbers that add up to 10. Only one path is correct. Can you help him? ……

, we can also see the beauty of numbers. As Li Bai wrote, “I’ve sailed a thousand miles through...We can find the golden ratio in nature, such as in a shell.  TUCHONG      ……

at working out a problem and finding an answer.2. The left brain works on numbers and calculations (计算). 2. The left brain works on numbers and calculations (计算). 3. The left side deals ……

. The human brain is only about 1.2 kg. It is much lighter! Who has a larger brain?Find their wayIf you get lost in a forest, you might need a map to find your way home. But pigeons (鸽子) can just use ……

For each block (块), start at the bottom left (左下角). Then, find a way to the finishing point. You can move up, down, left and right. But you have to multiply (乘) the numbers on the way to reach 192. ……

For each block (块), start at the bottom left (左下角). Then, find a way to the finishing point. You can move up, down, left and right. But you have to multiply (乘) the numbers on the way to reach 192. ……

number has 11 digits. You may sometimes find it hard to remember your number. That’s because China has the longest mobile phone numbers in the world. Why is this?The 11 digits can be divided ……