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Lessons 1-20

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
digits   numbers  
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comma   punctuation mark used between date and year ,  
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colon   punctuation mark used to separate hour and minutes :  
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doubles   numbers being added are the same, "seeing double"  
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trick for teens   all begin with a one  
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tricky numbers   10, 11, 12  
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attribute blocks   colored and shaped blocks  
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triangle   three sided shape  
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square   four sides shape with all sides equal  
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hexagon   a six sided shape  
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trapezoid   a four sided shape having only 2 parallel sides  
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patterns   repeated sequence ABABAB, ABCABCABC  
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some, some more problems   addition  
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equal   same size and same shape or same amounts  
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order   line up (first, second, third, ...)  
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addend   numbers that are added  
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adding O's (zero) facts   any number plus zero is that same number  
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adding 1's facts   any number plus one equals the next number in counting by ones  
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Commutative Property of Addition   addends can change place, sum remains the same;2+3 = 5 and 3+2 = 5  
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hexagon   six sided shape  
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Parallelogram   four sided rectangle, slanted  
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number sentence   sentence using numbers and symbols instead of words  
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facts   addition, subtraction (multiplication, division) number sentences  
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some went away   subtraction number sentences  
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one hour "ago"   move backward, in the past  
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one hour "from now"   move forward, in the future  
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hour hand   short hand on a clock  
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long hand   hand that tells the minutes on a clock  
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even numbers   numbers that always end with 0, 2, 4, 6, 8, ; an even number can be divided equally into groups  
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odd numbers   numbers that always end with 1, 3, 5, 7, 9; when divided into groups, one group always has one left over  
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Monday, Tuesday, Wednesday, Thursday, Friday   week days  
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Saturday, Sunday   weekend days  
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Ordinal positions   tell us the order or place of something; 1st, 2nd, 3rd, 4th, ....  
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adding "two" facts   even number plus even number = even number; even number plus odd number = odd number  
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pictograph   a graph (visual account)using pictures to represent what is being graphed  
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polygon   a shape that has sides that are straight line segments (apart of a line); can't have any curves or openings; closed figure  
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fractional parts of a whole   same size pieces of a whole; 2 pieces = each 1/2; 3 pieces = each 1/3 ...  
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adding "9" facts   trick: the sum of two digits in the answer always equals the number you added to 9; 9+5 = 14 (4+1= 5); 9+3 = 12(1+2= 3); the answer in an adding 9 problem is one less than the number you are adding to 9, with a one in front of it;  
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upper left hand   left side, top box  
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Created by: chayward
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