Lesson 1: Find the Missing Digits

Find the missing digit in each red box.

Lesson 2: Multiplying a Decimal and a Whole Number

When multiplying a decimal and a whole number, the decimal points must lie on the same vertical line.

Exercise 2: Multiplying a decimal and a whole number.

(1) Multiply the following.

Lesson 3: Finding Missing Digits in Minuend and Subtrahend with Borrowing

In the ones place, o = 6.

In the tens place, o = 6.

6

9 9

9 6

– 6 8

2 8

8

+ 8

1 6

6

– 8 – 8

2 8 2 8

Exercise 3: Find the missing digits in the 2-digit minuends and the subtrahends.