Page 168 - NUMINO TG_3A

1099 0 ?? Unit

2 . Learn how to multiply 42 by 3. 2. Have students learn how to calculate
(2-digit number) x (1-digit number) horizontally
Multiply the ones. 42 42 with a regrouping in the tens place.
3 2 ones = 6 ones 3 3
6 6 Have students be careful of writing numbers
Multiply the ones. in the right places as shown below when
120 Multiply the tens. calculating vertical sentences.
126 Add the products. Write the regrouped tens in the hundreds
place.

Multiply the tens. 42 42 42 42
3 333
3 4 tens = 12 tens
= 1 hundred 2 tens 126 6 126

Multiply. b. 32 c. 63 d. 42 Write the ones Write the tens
4 3 4 in the ones in the tens
a. 51 place. place.
3 128 189 168

153

e. 63 f. 43 g. 81 h. 71
2 3 4 3

126 129 324 213

i. 41 5 205 j. 74 2 148 k. 91 2 182

10. 99 0 = ?? 95

Problem: Write the correct number in the to get a number close to 180.

31

Solution: 31 5 155, 31 6 186. Find the difference between each of these numbers and 180.
180 155 25, 186 180 6. The number closer to 180 is 186. Therefore, the correct number that
goes in the is 6.

Answer: 6

3A Unit 10 150