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problems to add and subtract within 20 and 100 by making ten and taking from ten (Level 3 strategies) (1. OA. 6, 1.NBT. 4–6). 1. In Module 1, students advance from Grade 1’s subtraction of a multiple of ten to a new complexity, subtracting single-digit numbers from both multiples of ten (e.g., 40 – 9) and from any two-digit number
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Preview and Download !Add Ten facts (10 + 3, 7 + 10) apply when 10 is added to a single-digit number. This strategy helps students work flexibly with tens and ones. Add Nine facts are fast when you know how to make 10. If the fact is 9 + 7, as in the example, make 10 (9+1=10), then add 6 more. Students use this strategy to see that 9+7 is the same as 10+6.
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Preview and Download !Move two toothpicks to make two triangles. TOOTHPICK PUZZLE #15 ONE POSSIBLE SOLUTION. n ! TOOTHPICK PUZZLE #16 Move four toothpicks to make three equilateral triangles. TOOTHPICK PUZZLE #16 ONE POSSIBLE SOLUTION. Created Date: 8/12/2013 1:54:37 PM ...
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Preview and Download !Powers of Ten. Directions: Cut on the dotted line. Glue the left side of the small form onto the left side of the large form. Flip open each ‘power of ten’ and write how it is said inside. Write the numerical expression next to it. Your Thrifty Co-Teacher ©2014. Powers of Ten. Directions: Cut on the dotted line.
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Preview and Download !10 5. .37 = “thirty-seven hundredths” = 37. 100. .420 = “four hundred twenty thousandths” = 420 21 1000 50. 18.32 = “eighteen and thirty-two hundredths” = 18 32 18 8 100 25 Exercise 4 Directions: Change the following fractions and mixed numbers to decimal numbers. Round answers to the nearest thousandth, if necessary.
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Preview and Download !Count to ten Before class Make an enlarged copy of each of the two Count to ten worksheets, colour the numbers and the words, stick them onto card and cut them into flashcards. Make one copy of both of the Count to ten worksheets for each pupil. To save time, you can make the copies directly onto white card. In class 1 Divide the class into ...
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Preview and Download !Circle tens to make 1 hundred. Write the number in different ways. 1. 2. 13 tens — 1 — hundred 3 — tens 130 — 10 tens 11 tens — 1 — hundred 1 — ten 110 — 12 tens — 1 — hundred 2 — tens 120 — 10 tens 10 tens tens — hundred — tens — — tens — hundred — tens — —
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Preview and Download !Place: The position of a digit relative to the decimal. Ones, tens, hundreds, etc. Place Value: The quantity represented by the position of a digit relative to the decimal. 42,103. 2 is in the thousands place, so its place value is 2000. Standard notation: Writing a number with one digit in each place value. 42,103.
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Preview and Download !Characteristics of the Numeration System. (Adapted from Reys, Lindquist, Lambdin, Smith, & Suydam, 2004) Place value: The position of the digit represents its value: for example, the 2 in 23 names “twenty” and has a different mathematical meaning from the 2 in 32 which names “two.”. Base of ten: The term base simply means a collection.
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