California Math Triumphs VOL 1b Place Value (CALIFORNIA MATH by MACMILLAN

By MACMILLAN

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4 × 3 = 12 Write the tens digit above the tens column, and the ones digit in the product under the ones column. 1 103 ×4 −−−− 12 5. Multiply 4 times the digit in the hundreds column. 4×1= 4 103 ×4 −−−− 412 Find the product of 201 and 4. Ciara Jordan Reno 201 4 × −−− 205 201 4 × −−− 842 201 4 × −−− 804 Circle correct answer(s). Cross out incorrect answer(s). 1 Copyright © by The McGraw-Hill Companies, Inc. Who is Correct? Chapter 4 Multiplication 2 4. Multiply 4 times the digit in the tens column.

4 × 8 = 32; 8 × 4 = 32 YOUR TURN! Draw an array to model the expression 4 × 7. Find the product. Then write the commutative fact. 1. Write the answer if you know it. Otherwise, draw an array. The first factor is a 4, so there will be 4 rows. The second factor is a 7, so there will be 7 columns. 2. Label the array. Count the number of rectangles. 3. Write the commutative fact. 4 × 7 = 28 ; 7 × 4 = 28 28 4 × 7 GO ON Lesson 4-6 Multiply by 4 39 Example 2 YOUR TURN! Find the product of 203 and 4. Estimate first.

Use repeated addition to check your answer. Check 36 · total INDUSTRY A factory that makes tennis balls puts 3 balls in each can. If a case has 24 tennis balls, how many cans are there in each case? 8 Check off each step. ✔ Understand ✔ Plan ✔ Solve ✔ Check Chapter 4 Multiplication Copyright © by The McGraw-Hill Companies, Inc. 3 20 Draw a diagram. ✓ Use logical reasoning. Solve a simpler problem. Work backward. Act it out. 21 SHOPPING Joe had to make three round trips to the market. The market is four miles from his house.

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