# Math Mammoth

• ### Multiply 1-digit by 2,3,4-digit number - standard algorithm - Duration: 8 minutes, 5 seconds.

• 300 views
• 1 month ago
• ### Word problem about earnings - Duration: 3 minutes, 7 seconds.

• 126 views
• 1 month ago
• ### Two-digit multiplication and why we add a zero on the 2nd line - Duration: 5 minutes, 47 seconds.

• 164 views
• 1 month ago
• ### Shortcut for 2-digit multiplication when one factor is a multiple of ten - Duration: 7 minutes, 35 seconds.

• 92 views
• 1 month ago
• ### Some money word problems - mental math and estimation help us - Duration: 5 minutes, 36 seconds.

• 96 views
• 1 month ago
• ### Multiplying money amounts - 4th grade math: estimation and word problem - Duration: 4 minutes, 30 seconds.

• 105 views
• 1 month ago
• ### Number sentences with several operations - 4th grade math - Duration: 6 minutes, 38 seconds.

• 194 views
• 1 month ago
• ### The order of operations for 4th grade math - Duration: 5 minutes, 10 seconds.

• 167 views
• 1 month ago
• ### Drawing a bar graph from the given data - 4th grade math - Duration: 5 minutes, 20 seconds.

• 115 views
• 2 months ago
• ### Word problems to solve - estimation and adding up - 4th grade math - Duration: 3 minutes, 28 seconds.

• 180 views
• 2 months ago
• ### Round and estimate money amounts - Duration: 4 minutes, 44 seconds.

• 198 views
• 2 months ago
• ### Estimate the result using rounded numbers - 4th grade math - Duration: 5 minutes, 6 seconds.

• 411 views
• 2 months ago
• ### Rounding 4-digit numbers - 4th grade math - Duration: 7 minutes, 19 seconds.

• 779 views
• 2 months ago
• ### Bar models in addition and subtraction problems - 4th grade math - Duration: 9 minutes, 41 seconds.

• 1,004 views
• 2 months ago
• ### Division word problems that involve a reminder - Duration: 6 minutes, 50 seconds.

• 181 views
• 3 months ago
• ### Division terminology and dividing by zero - Duration: 6 minutes, 48 seconds.

• 197 views
• 3 months ago
• ### Long division as repeated or continued subtraction - Duration: 8 minutes, 44 seconds.

• 262 views
• 3 months ago
• ### Number sentences or expressions using several operations - Duration: 4 minutes, 6 seconds.

• 126 views
• 4 months ago
• ### Order of operations - draw 'bubbles' - 4th grade math - Duration: 4 minutes, 36 seconds.

• 183 views
• 4 months ago
• ### How to find a fractional part of a quantity (using division) - Duration: 9 minutes, 57 seconds.

• 107 views
• 4 months ago
• ### Division with remainders: practice - Duration: 7 minutes, 16 seconds.

• 95 views
• 4 months ago
• ### Introduction to remainders in division (mental math) - Duration: 6 minutes, 4 seconds.

• 112 views
• 4 months ago
• ### How to find all the factors of a given number - 4th grade math - Duration: 9 minutes, 19 seconds.

• 1,177 views
• 4 months ago
• ### Introduction to prime numbers - Duration: 9 minutes, 27 seconds.

• 245 views
• 4 months ago
• ### Learn the terms factor, multiple, and divisible - Duration: 4 minutes, 49 seconds.

• 172 views
• 4 months ago
• ### How to teach long division step-by-step - Duration: 12 minutes.

• 477 views
• 5 months ago
• ### Concept of average - 4th grade math - Duration: 8 minutes.

• 160 views
• 5 months ago
• ### So many of the same thing - proportional reasoning in elementary math - Duration: 9 minutes, 22 seconds.

• 357 views
• 7 months ago
• ### Order of operations plus writing simple expressions (4th grade math) - Duration: 11 minutes.

• 503 views
• 7 months ago
• ### How to round the factors to estimate the answer to a multiplication problem - Duration: 9 minutes, 7 seconds.

• 623 views
• 7 months ago
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