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```COUNTING BACK BY DIGITS SHEET 1 ANSWERS
1)
50
45
40
35
30
25
20
15
44
40
36
32
28
24
20
16
63
54
45
36
27
18
9
0
72
64
56
48
40
32
24
16
24
22
20
18
16
14
12
10
27
24
21
18
15
12
9
6
32
28
24
20
16
12
8
4
42
36
30
24
18
12
6
0
70
63
56
49
42
35
28
21
60
55
50
45
40
35
30
2)
3)
4)
5)
6)
7)
8)
9)
10)
65
COUNTING ON BY DIGITS SHEET 1 ANSWERS
1)
0
5
10
15
20
25
30
35
10
12
14
16
18
20
22
24
3
6
9
12
15
18
21
24
8
16
24
32
40
48
56
64
0
6
12
18
24
30
36
42
7
14
21
28
35
42
49
56
15
18
21
24
27
30
33
36
9
18
27
36
45
54
63
72
4
9
14
19
24
29
34
39
4
8
12
16
20
24
28
2)
3)
4)
5)
6)
7)
8)
9)
10)
0
Comparing numbers up to 10,000
Example:
4,836 > 2,835
Compare the numbers. Add: > or < or =
1.
1,668 < 1,717
2.
5,971 < 9,237
3.
3,699 > 2,942
4.
656 > 502
5.
5,669 > 5,128
6.
4,966 > 3,252
7.
6,721 > 1,034
8.
4,146 < 8,202
9.
2,722 < 6,629
10.
7,980 < 9,187
11.
9,621 > 9,084
12.
9,770 > 6,378
13.
3,084 < 3,663
14.
8,243 > 1,355
15.
5,793 > 2,659
16.
2,911 < 9,089
17.
8,068 > 3,510
18.
8,545 > 2,951
Comparing decimals
Compare the numbers. Add: > or < or =
1.
75.8 > 0.09
2.
5.03 < 22.8
3.
0.37 < 8.4
4.
0.3 < 3.68
5.
0.03 < 0.5
6.
40.8 > 0.71
7.
42.7 > 36.3
8.
3.74 < 96.9
9.
0.07 < 1.4
10.
7.1 < 95.1
11.
0.07 < 5.09
12.
0.6 < 7.07
Dividing by 10 and 100
Find the quotient.
1.
20 ÷ 10 = 2
2.
90 ÷ 10 = 9
3.
40 ÷ 10 = 4
4.
130 ÷ 10 = 13
5.
150 ÷ 10 = 15
6.
400 ÷ 10 = 40
7.
870 ÷ 10 = 87
8.
350 ÷ 10 = 35
9.
40 ÷ 10 = 4
10.
710 ÷ 10 = 71
11.
7,000 ÷ 100 = 70
12.
200 ÷ 100 = 2
13.
200 ÷ 100 = 2
14.
300 ÷ 100 = 3
15.
3,400 ÷ 100 = 34
16.
200 ÷ 100 = 2
17.
200 ÷ 100 = 2
18.
4,600 ÷ 100 = 46
19.
800 ÷ 100 = 8
20.
8,800 ÷ 100 = 88
Find the missing place value from a 6-digit number
Find the missing numbers:
1)
9 + 70 + 200 + 7,000 + 90,000 + _________ = 397,279
2)
_________ + 700,000 + 600 + 6,000 + 3 + 30 = 776,633
3)
8 + 40 + 500 + _________ + 50,000 + 200,000 = 259,548
4)
5 + 500 + 6,000 + _________ + 90,000 + 900,000 = 996,595
5)
7 + 30 + 900 + 6,000 + 10,000 + _________ = 216,937
6)
500,000 + 60,000 + 200 + 9,000 + 60 + _________ = 569,260
7)
0 + 90,000 + _________ + 2,000 + 9 + 900,000 = 992,509
8)
50 + 80,000 + 600 + _________ + 9 + 300,000 = 387,659
9)
_________ + 80,000 + 300 + 6,000 + 5 + 600,000 = 686,355
10)
8 + 700 + _________ + 70,000 + 90 + 700,000 = 779,798
11)
2 + 10 + 900 + 2,000 + 30,000 + _________ = 632,912
12)
_________ + 70 + 900,000 + 7,000 + 70,000 + 3 = 977,773
1)
300,000
2)
70,000
3)
9,000
4)
90
5)
200,000
6)
0
7)
500
8)
7,000
9)
50
10)
9,000
11)
600,000
12)
700
Multiply whole tens and whole hundreds
Find the product.
1.
6 × 60 = 360
2.
5 × 70 = 350
3.
3 × 200 = 600
4.
6 × 20 = 120
5.
3 × 10 = 30
6.
7 × 40 = 280
7.
6 × 10 = 60
8.
2 × 10 = 20
9.
6 × 90 = 540
10.
1 × 200 = 200
11.
4 × 300 = 1,200
12.
8 × 80 = 640
13.
4 × 60 = 240
14.
5 × 10 = 50
15.
2 × 70 = 140
16.
2 × 700 = 1,400
17.
6 × 200 = 1,200
18.
8 × 30 = 240
19.
6 × 300 = 1,800
20.
3 × 60 = 180
21.
5 × 20 = 100
22.
2 × 400 = 800
23.
3 × 80 = 240
24.
7 × 600 = 4,200
25.
8 × 700 = 5,600
26.
9 × 800 = 7,200
27.
6 × 70 = 420
Multiply whole tens and whole hundreds
Find the product.
1.
6 × 60 = 360
2.
5 × 70 = 350
3.
3 × 200 = 600
4.
6 × 20 = 120
5.
3 × 10 = 30
6.
7 × 40 = 280
7.
6 × 10 = 60
8.
2 × 10 = 20
9.
6 × 90 = 540
10.
1 × 200 = 200
11.
4 × 300 = 1,200
12.
8 × 80 = 640
13.
4 × 60 = 240
14.
5 × 10 = 50
15.
2 × 70 = 140
16.
2 × 700 = 1,400
17.
6 × 200 = 1,200
18.
8 × 30 = 240
19.
6 × 300 = 1,800
20.
3 × 60 = 180
21.
5 × 20 = 100
22.
2 × 400 = 800
23.
3 × 80 = 240
24.
7 × 600 = 4,200
25.
8 × 700 = 5,600
26.
9 × 800 = 7,200
27.
6 × 70 = 420
Ordering decimals
Write the numbers from smallest to largest.
1.
9.34
83.9
21.4
0.96
0.96
9.34
21.4
83.9
2.
8.11
34.1
1.29
3.16
1.29
3.16
8.11
34.1
3.
5.94 5.94
8.65 6.23
7.7 7.7
6.23 8.65
4.
9.58
29.6
6.70
94.1
6.70
9.58
29.6
94.1
5.
58.1
2.74
35.4
0.65
0.65
2.74
35.4
58.1
6.
7.30
0.28
0.01
3.63
0.01
0.28
3.63
7.30
7.
1.43
0.54
4.57
0.05
0.05
0.54
1.43
4.57
8.
4.3 2.16
21.7 2.28
2.16 4.3
2.28 21.7
9.
7.93
5.94
0.93
28.7
0.93
5.94
7.93
28.7
Round numbers 0-1,000 to the nearest 10
Example:
329 rounded to the nearest 10 is 330
Round to the nearest ten.
1. 804 = 800
2. 643 = 640
3. 171 = 170
4. 700 = 700
5. 735 = 740
6. 181 = 180
7. 747 = 750
8. 245 = 250
9. 684 = 680
10. 415 = 420
11. 149 = 150
12. 481 = 480
13. 246 = 250
14. 298 = 300
15. 856 = 860
16. 497 = 500
17. 550 = 550
18. 893 = 890
19. 101 = 100
20. 109 = 110
21. 936 = 940
Round numbers 0-10,000 to the nearest 100
Example:
4,689 rounded to the nearest 100 is 4,700
Round to the nearest hundred.
1. 9,820 = 9,800
2. 5,470 = 5,500
3. 6,233 = 6,200
4. 2,930 = 2,900
5. 4,881 = 4,900
6. 3,027 = 3,000
7. 545 = 500
8. 4,710 = 4,700
9. 2,889 = 2,900
10. 195 = 200
11. 5,872 = 5,900
12. 1,749 = 1,700
13. 9,837 = 9,800
14. 7,932 = 7,900
15. 6,125 = 6,100
16. 8,713 = 8,700
17. 8,684 = 8,700
18. 8,097 = 8,100
19. 1,083 = 1,100
20. 8,328 = 8,300
21. 1,853 = 1,900
Round numbers 0-10,000 to the nearest 1,000
Example:
4,689 rounded to the nearest 1,000 is 5,000
Round to the nearest thousand.
1. 1,539 = 2,000
2. 8,764 = 9,000
3. 3,695 = 4,000
4. 8,220 = 8,000
5. 3,599 = 4,000
6. 209 =
7. 3,941 = 4,000
8. 5,912 = 6,000
9. 1,908 = 2,000
10. 5,388 = 5,000
11. 160 =
12. 1,329 = 1,000
13. 6,273 = 6,000
14. 2,046 = 2,000
15. 4,218 = 4,000
16. 9,186 = 9,000
17. 7,284 = 7,000
18. 1,658 = 2,000
19. 9,129 = 9,000
20. 4,137 = 4,000
21. 6,086 = 6,000
0
0
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