Comprehensive subtraction worksheet designed to help students practice arithmetic with whole numbers, decimals, and fractions.

Let's solve each question step by step using basic arithmetic and calculator methods. I'll provide the answers and a brief explanation for each.

---

QUESTION 1: Use a calculator to work out the following.

These are whole number subtractions.

a) $ 83 - 65 = 18 $
b) $ 836 - 512 = 324 $
c) $ 2835 - 1325 = 1510 $
d) $ 897 - 569 = 328 $
e) $ 5635 - 3234 = 2401 $
f) $ 561 - 389 = 172 $
g) $ 8364 - 5989 = 2375 $
h) $ 5380 - 4196 = 1184 $
i) $ 968 - 769 = 199 $
j) $ 589 - 435 = 154 $
k) $ 665 - 538 = 127 $
l) $ 2315 - 1859 = 456 $

✔ All done with simple subtraction.

---

QUESTION 2: Calculate the following (decimals)

a) $ 8.75 - 3.5 = 5.25 $
b) $ 9.689 - 3.334 = 6.355 $
c) $ 27.89 - 4.347 = 23.543 $
d) $ 15.69 - 13.73 = 1.96 $
e) $ 89.49 - 63.73 = 25.76 $
f) $ 85.63 - 47.79 = 37.84 $
g) $ 36.45 - 18.36 = 18.09 $
h) $ 19.56 - 17.88 = 1.68 $
i) $ 38.63 - 15.99 = 22.64 $
j) $ 91.23 - 68.57 = 22.66 $
k) $ 43.31 - 38.357 = 4.953 $
l) $ 61.93 - 53.89 = 8.04 $

✔ Subtract decimals carefully, aligning decimal points.

---

QUESTION 3: Use your calculator to find the following (fractions)

You can enter fractions into a calculator as decimals or use fraction functions.

a) $ \frac{4}{5} - \frac{1}{5} = \frac{3}{5} = 0.6 $
b) $ \frac{4}{15} - \frac{1}{15} = \frac{3}{15} = \frac{1}{5} = 0.2 $
c) $ \frac{3}{10} - \frac{1}{10} = \frac{2}{10} = \frac{1}{5} = 0.2 $
d) $ \frac{7}{8} - \frac{2}{3} $ → Common denominator: $ \frac{21}{24} - \frac{16}{24} = \frac{5}{24} \approx 0.2083 $
e) $ \frac{5}{6} - \frac{1}{3} = \frac{5}{6} - \frac{2}{6} = \frac{3}{6} = \frac{1}{2} = 0.5 $
f) $ \frac{2}{5} - \frac{1}{15} = \frac{6}{15} - \frac{1}{15} = \frac{5}{15} = \frac{1}{3} \approx 0.333 $
g) $ 1 - \frac{5}{24} = \frac{24}{24} - \frac{5}{24} = \frac{19}{24} \approx 0.7917 $
h) $ \frac{2}{3} - \frac{1}{4} = \frac{8}{12} - \frac{3}{12} = \frac{5}{12} \approx 0.4167 $
i) $ \frac{11}{20} - \frac{7}{20} = \frac{4}{20} = \frac{1}{5} = 0.2 $

✔ For fractions, ensure common denominators or convert to decimals.

---

QUESTION 4: Use your calculator to simplify the following

a) $ 512 - 375 = 137 $
b) $ 2348 - 1937 = 411 $
c) $ 5632 - 4586 = 1046 $
d) $ 896 - 537 = 359 $
e) $ 835 - 438 = 397 $
f) $ 253 - 199 = 54 $
g) $ 8.35 - 7.27 = 1.08 $
h) $ 9.89 - 7.89 = 2.00 $
i) $ 19.65 - 14.89 = 4.76 $
j) $ 48.67 - 37.57 = 11.10 $
k) $ 61.32 - 39.65 = 21.67 $
l) $ 53.69 - 39.99 = 13.70 $

✔ Again, straightforward subtraction with decimals.

---

QUESTION 5: Use a calculator to find the answer (mixed numbers)

Convert mixed numbers to improper fractions or decimals.

a) $ 5\frac{7}{8} - 5\frac{2}{8} = (5 + \frac{7}{8}) - (5 + \frac{2}{8}) = \frac{7}{8} - \frac{2}{8} = \frac{5}{8} = 0.625 $

b) $ 12\frac{7}{10} - 5\frac{2}{3} $

First, convert:
- $ 12\frac{7}{10} = 12 + 0.7 = 12.7 $
- $ 5\frac{2}{3} \approx 5 + 0.6667 = 5.6667 $

Now subtract:
$ 12.7 - 5.6667 = 7.0333 $

Or in fractions:
- $ 12\frac{7}{10} = \frac{127}{10} $
- $ 5\frac{2}{3} = \frac{17}{3} $
- $ \frac{127}{10} - \frac{17}{3} = \frac{381 - 170}{30} = \frac{211}{30} = 7\frac{1}{30} \approx 7.0333 $

So answer: $ \boxed{7\frac{1}{30}} $ or $ \boxed{7.0333} $

c) $ 6\frac{4}{9} - 3\frac{2}{3} $

Convert:
- $ 6\frac{4}{9} = \frac{58}{9} $
- $ 3\frac{2}{3} = \frac{11}{3} = \frac{33}{9} $
- $ \frac{58}{9} - \frac{33}{9} = \frac{25}{9} = 2\frac{7}{9} \approx 2.777... $

✔ Final answer: $ \boxed{2\frac{7}{9}} $

---

✔ Final Answers Summary:

#### Question 1:
a) 18
b) 324
c) 1510
d) 328
e) 2401
f) 172
g) 2375
h) 1184
i) 199
j) 154
k) 127
l) 456

#### Question 2:
a) 5.25
b) 6.355
c) 23.543
d) 1.96
e) 25.76
f) 37.84
g) 18.09
h) 1.68
i) 22.64
j) 22.66
k) 4.953
l) 8.04

#### Question 3:
a) $ \frac{3}{5} $ or 0.6
b) $ \frac{1}{5} $ or 0.2
c) $ \frac{1}{5} $ or 0.2
d) $ \frac{5}{24} $ or ≈0.2083
e) $ \frac{1}{2} $ or 0.5
f) $ \frac{1}{3} $ or ≈0.333
g) $ \frac{19}{24} $ or ≈0.7917
h) $ \frac{5}{12} $ or ≈0.4167
i) $ \frac{1}{5} $ or 0.2

#### Question 4:
a) 137
b) 411
c) 1046
d) 359
e) 397
f) 54
g) 1.08
h) 2.00
i) 4.76
j) 11.10
k) 21.67
l) 13.70

#### Question 5:
a) $ \frac{5}{8} $ or 0.625
b) $ 7\frac{1}{30} $ or ≈7.0333
c) $ 2\frac{7}{9} $ or ≈2.777...

---

Let me know if you'd like this formatted as a printable worksheet or need help with calculator steps!