G45.M3.S1.Q1

Solve 65 x 87 using the optimized double-step multiplication method.

• 5555

• 5655

• 5665

Solve 57 x 75 using the optimized double-step multiplication method.

Solve 98 x 6 using the step multiplication method.​ (a)  

• 588
• 578
• 568

Solve 12 x 47 using an optimized double-step multiplication method.

Solve 99 x 7 using the step multiplication method.

• 693

• 683

Solve 35 x 7 using the step multiplication method.

• 235

• 245

• 225

Solve 48 x 64 using an optimized double-step multiplication method.