chapter 2: divide whole numbers. compatible numbers numbers that are easy to compute with mentally...
TRANSCRIPT
Chapter 2:
Divide Whole Numbers
Compatible Numbers
Numbers that are easy to compute with mentally
Dividend The number that is to be divided in a division problem
Divisor The number that divides the dividend
Estimate A number close to an exact amount
Factor A number multiplied by another number to find a product
Partial Quotients
A method of dividing in which multiples of the divisor are subtracted by the dividend then the quotients are added together.
Product The answer to a multiplication problem
Quotient The number, not including the remainder, that results from dividing
Remainder The amount left over when a number cannot be divided equally
Draw a quick picture to model 426.
Show 426 ÷ 3 =
Draw a quick picture to model 184.
Show 184 ÷ 4 =
Draw a quick picture to model 364.
Show 364 ÷ 3 =
Draw a quick picture to model 218.
Show 218 ÷ 4 =
Lesson 2.1 Place the First Digit Date
Traditional Division Steps
Divide (÷)
Multiply (x)
Subtract (-)
Bring down(check)
Estimate:
6 372
Estimate:
6 4518
Lesson 2-1 Notes:
Traditional Division Steps
Divide (÷)
Multiply (x)
Subtract (-)
Bring down
Estimate:
3 627
Lesson 2-1 Notes:
Lesson 2-1 To Do List:
1. Complete pgs 63 & 64
2. Enrich/reteach worksheet
Test Prep Lesson 2-1: Use your clicker to answer the following
question:
Lesson 2.2 Divide 1– Digit Divisors Date
n = 3 * 94dividend
divisor
quotient
n = 6 * 58 + 4dividend
divisor
quotient
remainder
599 = 8 * 74 + ndividend
divisor
quotient
remainder
94
3 n
58
6 n
74
8 599
r 4
r n
Lesson 2-2 Notes:
Traditional Division Steps
Divide (÷)
Multiply (x)
Subtract (-)
Bring down
Estimate:
3 2307
Check your answer (multiply)
Traditional Division Steps
Divide (÷)
Multiply (x)
Subtract (-)
Bring down
Estimate:
7 297
Check your answer (multiply)
Lesson 2-2 To Do List
1. Complete pages 67 & 68
2. Enrich/reteach worksheet
Test Prep Lesson 2-2: Use your clicker to answer the following question:
Lesson 2.3 Modeling Division
with Base 10 BlocksDate
Lesson 2-3 Notes:
12 156
12
10 3+
15 180
15
10 2+
13 143
13
10 + 1
12 168
10 4+
12
14 154
14
10 + 1
11 187
11
10 7+
Lesson 2-3 To Do List:
1. Complete pgs 71 & 72
2. Work on enrich worksheet
Lesson 2-4 Partial Quotients Date
Lesson 2-4
Lesson 2-4 Notes:Division Problem
Multiplication Expression
Partial Quotient
17 476
Division Problem
Multiplication Expression
Partial Quotient
17 476
Lesson 2-4 Notes:Division Problem
Multiplication Expression
Partial Quotient
18 648
Division Problem
Multiplication Expression
Partial Quotient
18 648
Lesson 2-4 Notes:Division Problem
Multiplication Expression
Partial Quotient
Division Problem
Multiplication Expression
Partial Quotient
25753 25753
Lesson 2-4 Notes:Division Problem
Multiplication Expression
Partial Quotient
Division Problem
Multiplication Expression
Partial Quotient
623186 623186
Lesson 2-4 To Do List:
1. Complete pgs 75 & 76
2. Work on enrich worksheet
Lesson 2.5 Estimate with 2-digit divisorsDate
Lesson 2-5 Notes: 1,731 ÷ 27
Step 1: round the divisor to a multiple of 10
1,731 ÷ ___
Step 2: Estimate 1round the dividend up to a number compatible with your divisor ____ ÷ 30 =
___
Step 3: Estimate 2round the dividend down to a number compatible with your divisor ____ ÷ 30 = ___
42 1,578
Estimate 1: _____ ÷ _____ = _____
Estimate 2:_____ ÷ _____ = _____
79 4,785
Estimate 1:_____ ÷ _____ = _____
Estimate 2:_____ ÷ _____ = _____
42 396
Estimate 1:_____ ÷ _____ = _____
Estimate 2:_____ ÷ _____ = _____
59 413
Estimate 1:_____ ÷ _____ = _____
Estimate 2:_____ ÷ _____ = _____
Test Prep Lesson 2-5:Use your clicker to answer the following question:
Lesson 2.6 Divide by 2-digit divisors Date
Lesson 2-6 Notes:Traditional Division StepsDivide (÷)Multiply (x)Subtract (-)Bring down
62028
Estimate: _____ ÷ _____ = _____
Lesson 2-6 Notes:Traditional Division StepsDivide (÷)Multiply (x)Subtract (-)Bring down
84264
Estimate: _____ ÷ _____ = _____
Lesson 2-6 To Do List:
1. Complete pgs 85 & 86
2. Work on enrich worksheet
Test Prep Lesson 2-6:Use your clicker to answer the following question:
Lesson 2-7 Interpret the Remainder
Date
Lesson 2-7 To Do List:
1. Complete pgs 89 & 90
2. Work on enrich worksheet
Test Prep Lesson 2- 7:Use your clicker to answer the following question:
Lesson 2-8 Adjust Quotients Date
24 ÷ 6 =
240 ÷ 6 =
240 ÷ 60 =
720 ÷ 8 =
720 ÷ 80 =
7,200 ÷ 80 =
55 ÷ 11 =
550 ÷ 11 =
5,500 ÷ 11 =
20 ÷ 5 =
200 ÷ 5 =
200 ÷ 50 =
Notes:
24 576
2
18 857
4
Notes:
42 3783
8
23 652
3
Lesson 2-8 To Do List:
1. Complete pgs 93 & 94
2. Work on enrich worksheet
Test Prep Lesson 2-8:Use your clicker to answer the following question:
Lesson 2.9 Problem Solving-Division Date
Notes:
Lesson 2-9 To Do List:
1. Complete pgs 97 & 98
2. Work on enrich worksheet
Test Prep Lesson 2-9: Use your clicker to answer the following question: