There are 30 ways to add and subtract the first volume score of the fifth grade of primary school, which is urgent! ! ! I need it now.

First, I will fill it out. ? 1 minute per grid? *** 19? 1, fill in. ? 1? Five 15? ? A 16 is 1. ? 2? Did you have it in' 78? ? 8 1? What's in 322? ? 3 1.？ 3? 18 9 1? ? . 2. Test you. ? 1? What is the 13 of six pencils? ? Branch? 10 pencil) () There are four pencils. ? 2? What are the 2 1 of a plate of apples? Are there * * * in two identical plates? ? An apple. 3. Pseudo-fraction and Band-fraction are used to represent the shaded part in the graph. ? ? =? ? ? ? =? ? 4、? ? ÷? ? = 53 =10) (=) (21=100) (What is the greatest common factor of 5, 25 and 30? ? What is the least common multiple? ?

Second, I will judge. ? Mark "√" for the right and "×" for the wrong? 2 points for each question? *** 10? 1, Beckham said he ate a piece of cake? Mom ate this cake. 104? Then my mother ate more than Beckham. ? ? 2. Any two adjacent natural numbers? Except 0? The least common multiple of is their product? For example, the least common multiple of 1 1 and 12 is 12 1. ? ? 3. If the greatest common factor of the numerator and denominator of a fraction is 1? Then the score is the simplest score. ? ? 4. The simplest score of1812 is 96. ? ? 5. There are 10 true fractions * * * The denominator is 10. ? ? Third, answer as required. ? ***36? 1, in? ? Fill in ">", "<" or "=" ? Six points? 53? ? 64 83 1? ? 1 18 20 16? ? 54 2. Circle simplest fraction? Divide the rest of the scores. ? 12 points? 541612 408 2412 6010011303. Write 95 and 127 as the denominator. ? Six points? 4. Write three scores equal to 53. ? Six points? ? ? ?