(2013 Math League, Grade 6, Question #7) Which of the following is the sum of two prime numbers?( ) A.11 B.17 C.23 D.31相关知识点: 试题来源: 解析 D Since each choice is odd, 2 must be one of the addends. A: 11=2+9 B: 17=2+15 C: 23=2+21 D: 31=2+29反馈 收藏 ...
【学习目标】1、掌握常见规则图形的面积公式;2、掌握不规则图形的面积计算方法。【知识梳理】1、三角形的面积:面积=底×高÷2; 2、平行四边形的面积:面积=底×高;3、梯形的面积:面积=(上底+下底)×高÷2; 4、组合图形的面积: (1)组合图形面积的计算方法:求
Students will strive toward fluently adding or subtracting numbers within a 1,000. They will master rounding numbers to the nearest 10 or 100, and they will also learn to multiply one-digit numbers by multiples of 10 but less than 100 (e.g., 6 × 40). The Number System • Apply...
( 3, choose: (the correct answer fill in the serial number in parentheses) is one of the most simple fraction, a and C are (A, B, C, prime numbers coprime following scores can become the limited decimal is ()) The first half of 2003 (A days), 181 B, 182 C, 183 with...
Children in Grade 4 get introduced to the concept of factors, multiples and prime numbers. Here they get to learn about decimal numbers. EXPLORE NOW 5 GRADE5 In Grade 5 children learn to operate both on fractions and decimals. Concepts like percentages and the unitary method get introduced in...
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• Rounding - Round numbers to the nearest whole number, tenth, and hundredth • Prime Numbers - Save the astronaut by identifying prime and composite numbers • Synonyms and Antonyms - Identify different words that mean the same or opposite ...
with whole numbers) Subtracting Decimals e.g. 4.234 – 3.438 Subtracting Decimals e.g. 6.892 – 3.2 Multiplying Decimals e.g. .4 x .6 Multiplying Decimals e.g. .44 x 7.3 Multiplying Decimals e.g. 6.004 x 100 Multiplying Decimals e.g. 5.587 x .65 Dividing Decimals e.g. 3.67 ...
Prime and composite numbersNHG Inequalities with number linesTQ2 Compare numbersBSN B.Addition Addition facts up to 20NS6 Addition facts up to 20: word problemsJFN Complete the addition sentence: facts up to 20FCX Add two-digit numbersVN6 Add numbers up to two digits: word problemsBXZ Complete...
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