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\\November 3, 2023 1:02 PM Surender Prajapati Proof 5 Reader _________________________ Date: ___________________74

5. Decimal Place Value Chart Mental Maths
Hundreds Tens Ones Decimal Tenths Hundredths Thousandths Number 1. (a) 2. (a) 3. (c) 4. (c) 5. (a)
(100) (10) (1) point
1 
1 
1 
(•)       100     1000  Chapter Assessment

10
(c) –(ii)
3 7 • 0 5 37.05 1. (a) –(iii) (b) –(i) 3. 12 bottles (d) –(iv) . . .
2.
4.705 litres
5.
08 13 12
1 5 • 2 6 3 15.263
.
.
.
2 2 6 • 2 6 6 226.266 15 11 07
.
.
.
7 2 4 • 2 6 4 724.264 10 09 14
6. (a) 7.347 (b) 0.070 (c) 29.909 (d) 44.995 6. 324.28 kg 7. Sameer performed better 8. 5.69 km
(e) 801.109 (f) 99.99
3 2 2 4 7
7. (a) 8 + + (b) 10 6++ + +
10 100 10 100 1000 Chapter 6: Introduction to Negative Numbers
4 5 9 4 7
(c) 80 1++ + + (d) 300 20 6+ + + + Practice Time 6A
10 100 1000 10 100 1. (a) (i) going south (b) (i) +3500 km
3 2
(e) 700 20 8+ + + + 2. (a) +10 (b) +50 m (c) –`6500 (d) –2 (e) +3500 km
100 1000
8. (a) 32.123 (b) 5080.16 (c) 704.028 3. (a) false (b) true (c) false (d) true (e) true
(d) 5085.348 (e) 4800.078 (f) 908.93 (g) 6083.009 4. (a) 4 (b) –13 (c) –3
Practice Time 5B 5. (a) Drop in temperature (b) Deposit of `5000 in a bank
1. (a), (c) 2. (b), (c), (d) (c) Loosing `500 per day (d) At a height of 10 m
3. (a) 7.1, 31.4 10.1; 0.97, 8.89 (b) 21.470 3.001, 0.098 (e) A debit of `2500 (f) Height of 150 m from sea level
4. (a) 0.30, 0.300 (b) 2.50, 2.500 (c) 41.70, 41.700
(d) 6.4, 6.400 (e) 9.7, 9.70 (f) 5.3, 5.30 (g) Move 5 steps downstairs
5. (a) 2.300, 6.870, 2.630, 43.600, 1,264 6. Ascending Order Descending Order
(b) 5.100, 5.010, 5.001, 40.400, 48.260, 100.143
Practice Time 5C (a) –14, –12, –8, –6, –3, 0, 11, 12 12, 11, 0, –3, –6, –8, –12, –14
1. (a) > (b) < (c) > (d) = (e) > (f) > (b) –18, –15, –12, –7, –6, 0, 9, 10, 11 11, 10, 9, 0, –6, –7, –12, –15, –18
(g) < (h) < (i) < Practice Time 6B
2. (a) 1.708 (b) 50.8 (c) 350.2 (d) 24.64 1.
3. (a) 0.62 (b) 2.364 (c) 10.57 (d) 0.8 (a) (i) –100 (b) (iii) 80 (c) (iii) –6
4. (a) 0.1 (b) 17.981 (c) 28.158 (d) 11.490 2. (a) –217 (b) 0 (c) –120 (d) 100 (e) –121 (f) –362
5. (a) 3.006, 3.6, 36.6, 366.6 (b) 0.8, 0.88, 0.888, 80, 88 3. (a) 10 (b) –10 (c) –13 (d) 1
(c) 0.1001, 1.001, 10.01, 100.1 (d) 5.03, 5.039, 5.31, 53.5 5. +, `3150 6. 4790 m
6. (a) 200.3, 20.03, 2.003, 0.203 (b) 10.045, 10.032, 10.02, 10.01 Chapter Assessment
(c) 98.98, 88.09, 78.78, 37.62 (d) 42.65, 15.60, 5.023, 3.005 1.
Practice Time 5D 2. (a) (iii) (b) (ii) (c) (ii) (b) withdraw `500 in post office
(a) ascend in height by 200 m
1. (a) 36.78 (b) 59.01 (c) 15.249 (d) 18.61 (c) loss of `350 (d) 25°C above the freezing point
(e) 331.856 (f) 54.632
2. (a) 41.97 (b) 63.21 (c) 99.35 kg (d) `83.58 3. (a) +200 m (b) +`2000 (c) –`5570 (d) –12°C (e) +150 (f) +9
(e) 8.576 L (f) 25.855 cm 5. (a) 0, 1, 2, 3, 4, 5, 6, 7, 8 (b) –14, –13, –12
3. (a) 1.7 (b) 0.356 (c) 18.897 (d) 12.2433 6. (a) –66, –65, –64 (it may vary) (b) –50, –51, –52 (it may vary)
(e) 109.615 (f) 19.84 (g) 0.744 (h) 0.621 7. (a) –1 (b) 0 (c) 110 8. –369 9. 19°C
(i) 123.755 Mental Maths
4. (a) 9.24 (b) 0.19 (c) 4.064 (d) 19.052 km
(e) 0.817 mL (f) 172.075 kg (g) `25.5 (h) 0.496 km 1. No 2. No 3. No 4. Yes 5. No
5. 0.42 6. 13.80 7. 131.3 8. `75 Chapter 7: Geometry
9. 62.9 m 10. 93.76 kg 11. 20.05 kg
Practice Time 5E Let’s Recall
1. (a) 8 (b) 76 (c) 138 (d) 157.5 (e) 456.7 (f) 45.7 1. Edge of pencil, edge of mobile, edge of blackboard, edge of book, etc.
(g) 6543 (h) 6560 (i) 27006 2. Pizza slices, traffic signs, sandwich slices, nachos, etc.
2. (a) 388.8 (b) 280.4 (c) 899.91 (d) 10.305 3. Blackboard, top of table, ruler, playing card, etc.
(e) 10283.4 (f) 43786.4 (g) 2340.855 (h) 5053.75 4. Bangles, coins, whole pizza, dart board, etc.
(i) 366 (j) 5093.4 (k) 15668.64 (l) 54.87 Practice Time 7A
3. (a) 0.54 (b) 6.36 (c) 45.76 (d) 421.05
(e) 8.4012 (f) 12.0972 (g) 0.24 (h) 0.01 1. (a)–(i) (b)–(iii) (c)–(ii)
4. (i) `142 (ii) `163 (iii) `195 5. `106.25 2. (a) point (b) ray (c) line (d) two (e) Intersecting lines
Practice Time 5F (f) Parallel lines
1. (a) 0.564 (b) 5.36 (c) 63.54 (d) 0.056 3. Do it yourself.

(e) 0.123 (f) 3.545 (g) 0.005 (h) 2.354 4. (a) Line AB or AB (b) Line QP or QP
(i) 0.364 (j) 0.087 (k) 0.0035 (l) 0.0005
2. (a) 0.93 (b) 0.197 (c) 7 (d) 12 (c) line segment ST or ST (d) Line EF or EF  
(e) 0.214 (f) 100.32 (g) 266.53 (h) 1.88 (e) Intersecting lines AB and CD (f) Parallel lines l and m or l||m
3. 37.44 kg 4. 6.736 m 5. 0.270 kg (g) Intersecting lines p and q (h) Parallel lines s and t or s || t

Brain Sizzlers 5. (a) A, P, B, Q (b) AB (c) None
0.254
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