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Instructional Videos
Abacus
Abacus
Video
Lesson 2: 1-Digit Direct & Indirect Addition 6+8+3+2+5
Video
Lesson 3: 2-Step Indirect Addition 47+8
Video
Lesson 3: 2-Step Indirect Addition 93+7
Video
Lesson 4: Addition with Decimals 25.1763+0.48
Video
Lesson 4: Addition Involving Money $489.05+76.65
Video
Lesson 5: 1-Digit Multiplier & 2 + Digits Multiplicand 8x7089
Video
Lesson 6: 2+ Digit Multiplier Single Digit Multiplicand 745X6
Video
Lesson 6: 2+ Digit Multiplier Single Digit Multiplicand 9,084X5
Video
Lesson 7: 1+ Digit Multiplier & Multiplicand 67X89
Video
Lesson 7: 1+ Digit Multiplier and Zero in Multiplier & Multiplicand 690X578
Video
Lesson 8: Multiplication of a Series of Numbers 1X3X6X24
Video
Lesson 9: Whole Number Subtraction 9,536-4,289
Video
Lesson 9: Subtracting with Zeroes 5,002-3,067
Video
Lesson 10: Subtraction with Decimals 34.71045-8.965
Video
Lesson 10: Subtraction Involving Money $275-$18.65
Video
Lesson 11: Short Division with a Remainder 43,388/9
Video
Lesson 11: Division with Decimals 5,727/6
Video
Lesson 12: Long Division 6,068/82
Video
Lesson 13: Trial Divisor & Upward Correction 37,060/436
Video
Lesson 14: Downward Correction 5,658/82
Video
Lesson 15: More Division with Decimals 241.2/5.36
Video
Lesson 15: Division of a Series of Numbers 59,904/78/64