What is the product of 25 and 2400?

Is '' pie'' a rational number?

What is the solution of the statement below?
5x+3y=18
x+y=2

Ben and Wiery have some toys. Ben says to Wiery,"If you give me 14 of your toys,I will have twice the number of toys left with you". Wiery replies,'If you give me 14 of your toys, I will have the same number of toys left with you." Find the number of toys with Ben ang Wiery separately.

What is the answer of the following equation?
1-2
2+1133
90000-2

What is the quotient of 5680 and 16?

The classification of rational number( just one kind)

已知x，y均为负数且满足
2x+y=m-3
x-y=2m
求m取值

What is the difference of 6 and 3

What is the answer of the following equation?
98998+123

What is the remaining number of the formula: 790/12?

Translate 9/11 into decimal

已知关于x，y的方程组的解为非负数，求整数m的值．
x+y=m
5x+3y=31

The length of a rectangle is 20 meters longer than the width. The perimeter must be between 80 and 100 meters. What are the possible values for the width of the rectangle?

What is the answer of the following equation?
8999+89999

What is the difference of 891 and 238?

Is this statement true?
5/13, 6/11, 3/8 are all rational numbers

求适合不等式﹣11＜﹣2a﹣5≤3的a的整数解．

What is the difference of the equation below?
999997777778-123456788889

What is the answer of the following equation?
12345+54321

What is the sum of 3456721 and 94738562?

Is this statement true?
3, 1.3, 3.333....., 4.567778901....., 6.5, -3.44444..... are all rational numbers

What is the solution of the statement below?
1-3x/2 ≤2x+1/5 -1
2(x+3)≥3-x

What is the sum of the equation?
1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+11+1+1+1=？

What is the answer of the following equation?
99999+88888+77777+66666+55555