Basic Facts
4 x 6 =
24
23 x 5 =
115
Ms. Vigil bought 10 boxes of pencils. Each box has 5 pencils. How many pencils does she have?
50 pencils
Ms. Holcombe bought 120 boxes of pencils. Each box has 3 pencils. She lost 2 pencils. How many pencils does she have?
358 pencils
120x3=360
360-2=358
3 x 7 =
21
4 × 200 = 4 × 2 hundreds=?
800
Ms. Smith has 33 folders, each has 4 sheets of paper inside them. How many sheets of paper are there altogether?
132
Mr. Gomez had 87 stickers. He gave all of the stickers to his class of 20 students. Some students received 4 stickers and the others received 5 stickers. How many students received 5 stickers?
7.
4 stickers x13=52
5 stickers x7=35
8 x 9 =
72
456 x 3 =
1,368
Faith has to find the product of 845 and 2. Her answer is 1,680. Is Faith correct? Explain.
She is incorrect. Faith’s error is that she did not regroup the ones.
Start with 5 ones × 2 = 10 ones. I regroup 10 ones into 1 ten. Then, I multiply 4 tens by 2 and add the 1 ten to get 9 tens. Finally, I multiply 8 hundreds by 2 to get 16 hundreds. I regroup 16 hundreds into 1 thousand 6 hundreds. The correct answer is 1,690.
FREEBIE!!!
YOU WIN 500 POINTS!!!
7 x 6 =
42
345 x 5 =
1,725
Mrs. Hale ran 345 miles each month for the past 6 months. How many miles did she run in all 6 months?
2,070
Joshua bought 4 video games each year for 23 years. He buys 6 video games on the 24th year. How many video games does he own now?
98 video games
4x23=92
92+6=98
7 x 12=
84
1,269 x 7 =
8,883
Mario walks his dog every day. The walk path makes a giant loop that is 279 feet long. If Mario and his dog make 3 laps around the loop, how far did they walk in feet?
837 feet
279x3=837
Bradley multiplied 362 by 9 as shown.
362 × 9 = 362 × 3 × 3 = 1,086 × 3 = 3,258
• Explain whether Bradley’s method is correct or incorrect.
• Show another way to find 362 × 9 quickly.
He is Correct.
9 groups of 362 is the same as 3 groups of 362 multiplied by 3. Bradley broke down 362 × 9 into 3 groups of 362 × 3.
362 × 9 = (362 × 10) – (362 × 1)
= 3,620 – 362
= 3,258