Câu hỏi: Biểu diễn biểu thức \(K = \sqrt[3]{{\frac{2}{3}\sqrt[3]{{\frac{2}{3}\sqrt {\frac{2}{3}} }}}}\) dưới dạng lũy thừa với số mũ hữu tỉ. A. \(K = {\left( {\frac{2}{3}} \right)^{\frac{5}{{18}}}}\) B. \(K = {\left( {\frac{2}{3}} \right)^{\frac{1}{{2}}}}\) C. \(K = {\left( {\frac{2}{3}} \right)^{\frac{1}{{8}}}}\) D. \(K = {\left( {\frac{2}{3}} \right)^{\frac{1}{{6}}}}\) Lời giải tham khảo: Đáp án đúng: D Với \(x > 0,x \ne […]

## Missing Number in Subtraction

The basic concept of finding the missing number in subtraction sums with one-digit number. These give us support and idea about the basic subtraction facts, as well as help us to understand the subtraction’s relationship to addition. It also assists as an introduction to learning algebra (as the missing number could be represented by a […]

## Subtraction word problems – 1-digit numbers

Math basic concept on subtraction word problems – 1-digit numbers for the first grade. To understand the word problems with different digits combinations read the question carefully and follow the steps provided. Suppose, a man had 7 apples, he ate 3 of them. How many apples are still left? Here we know that when 3 […]

## Addition Fact Sums to 13

In math addition fact sums to 13 we need to find the two numbers that add to thirteen. There are many combinations of numbers that add to 13 (thirteen). Suppose Clara’s sister gave her 7 candies how many candies Clara need more to make 13 candies? Clara needs 6 more candies to make 13. Since, […]

## Adding Doubles

In math adding doubles plays an important role for the kids to know addition facts. This activity increases the math skills in adding the numbers. Adding a number with the same number makes the addition doubles. Memorize the following table based on adding doubles: Note: Take the print out of this table based on adding doubles […]

## Adding with Zero

Here we will learn math adding with zero tables up to 25. The facts on zero addition tables can help us to learn how to add the numbers with 0. These are designed to help your child to improve their mental addition skills. Adding with zero will help your child to learn how to solve […]

## Missing Numbers Worksheet

Math practice on missing numbers worksheet will help the kids to know the numbers serially. Kids find difficult to memorize the numbers from 1 to 100 in the age of primary, we can understand the mental maturity and the difficulty level of the child at all stages have been kept in mind while introducing the […]

## Math Place Value

In math place value chart we will learn numerals from 0 to 100. In place values the places of ones and tens are explained. Numbers from 1 to 9 and zero; learns ‘nine and one more is ten’; the numeral 10; two digit number names and numerals from 0-99 in ones (0 to 9), tens […]