In third grade math, a number sentence is used to introduce simple mathematical statements to children. Number sentences can also include a less than or greater than sign in addition to other symbols.
Continue ReadingNumber sentences do not necessarily have to be true. Some teachers show number sentences that are not true to help teach children about math. Some number sentences have question marks in the middle as a way to introduce algebra. For example, “If trying to calculate 10 + ? =15, what is the missing number?” Number sentences also use the greater than or equal to sign or the less than or equal to sign. The not equal to sign appears in number sentences as well. These sentences can have two sides to them with an equal sign in the middle. An example is “5 +2= 6 +1” This is part of the reason why number sentences are not equations and are instead simply there to introduce third graders to more complicated and formal concepts they need to know later in school.
Number sentences also often introduce children to ideas like order of operations, variables and parentheses. It is a natural progression to go from question marks in number sentences to variables like “X” in algebra.
Learn more about ArithmeticFourth grade math curriculum differs between schools, but there are some common concepts that most fourth graders learn. Fourth grade math usually involves multiplication and division with several digits, and different types of math with fractions and decimals. Many fourth grade math problems are word problems, which help students learn math concepts and apply them to everyday life.
Full Answer >"Digits" are the symbols or characters used to represent a number visually. A number like five contains one digit, whereas a number like 555 contains three digits. This is easily seen when they are written as numerals: 5 versus 555.
Full Answer >In math, the dividend is the number into which another number is divided. In the division problem 8 ÷ 4 = 2, the number eight is the dividend.
Full Answer >Students in first grade initially learn about basic math concepts, such as addition and subtraction. They also are introduced to learning how to tell time and count money. Most math problems that students in first grade tackle are written in numerical form; word problems are introduced later.
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