Lesson 38: Transition from four partial products to the standard algorithm for two-digit by two digit multiplication.
Lesson 38 Homework 4 3
Name Date
1. Express 26 × 43 as two partial products using the distributive property. Solve.
26 × 43 = (_____ forty-threes) + (____ forty-threes)
2. Express 47 × 63 as two partial products using the distributive property. Solve.
47 × 63 = (____ sixty-threes) + (____ sixty-threes)
3. Express 54 × 67 as two partial products using the distributive property. Solve.
54 × 67 = (___ × ____) + (___ × ____)
4 3
× 2 6
6 × _____
20 × _____
6 3
× 4 7
_____ × _____
_____ × _____
6 7
× 5 4
_____ × _____
_____ × _____
20 6
43
40 7
63
A STORY OF UNITS
191
This work is derived from Eureka Math ™ and licensed by Great Minds. ©2015 Great Minds. eureka-math.org G4-M3-SE-1.3.0-06.2015
Lesson 38: Transition from four partial products to the standard algorithm for two-digit by two digit multiplication.
Lesson 38 Homework 4 3
4. Solve the following using two partial products.
5. Solve using the multiplication algorithm.
6. 54 × 52 7. 44 × 76
5 2
× 3 4
____ × _____
____ × _____
8 6
× 5 6
_____ × _____
_____ × _____
A STORY OF UNITS
192
This work is derived from Eureka Math ™ and licensed by Great Minds. ©2015 Great Minds. eureka-math.org G4-M3-SE-1.3.0-06.2015
Lesson 38: Transition from four partial products to the standard algorithm for two-digit by two digit multiplication.
Lesson 38 Homework 4 3
8. 63 × 63 9. 68 × 79
A STORY OF UNITS
193
This work is derived from Eureka Math ™ and licensed by Great Minds. ©2015 Great Minds. eureka-math.org G4-M3-SE-1.3.0-06.2015
