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Practice skip-counting by fives, tens, and hundreds.
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Ways to model word problems.
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Strategies to subtract two-digit numbers - regroup with base-ten blocks, regroup writing out tens and ones, and open number line.
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Practice using subtraction strategies with two-digit numbers.
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Subtracting by regrouping.
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Adding jumps of two and five.
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A SciShow Kids viewer wants to know, “Why do lightning and thunder happen?” Get your raincoat, because Jessi will take you inside a thunderstorm to give you the answer!
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Learn to represent integer addition, subtraction, and multiplication using a number line and counters. Multiple examples are provided in the video.
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Learn how to use open (unmarked) number lines to locate given numbers, show their magnitude, and even add numbers together. Two examples are given in the video.
Find all my videos and even more math…
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Learn to find unknown terms when in any position in an addition or subtraction number sentence. Several examples are given in the video.
Find all my videos and even more math resources at…
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How we put together a live broadcast each and every school day (more than 3500 live shows since 2002)
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