Printable primary math worksheet for math grades 1 to 6 based on ... - Free Printable

Let's solve each multiplication problem step by step to find the missing numbers in the worksheet. We'll go through each one and explain how we determine the missing digit(s).

---

Problem 1:

```
20
x ?
----
100
```
We know:
- 20 × ? = 100
- So, ? = 100 ÷ 20 = 5

✔ Answer: 5

---

Problem 2:

```
1?
x 7
----
105
```
We know:
- 1? × 7 = 105
- Let’s divide: 105 ÷ 7 = 15
- So, the number is 15, meaning the missing digit is 5

✔ Answer: 5

---

Problem 3:

```
50
x ?
----
300
```
We know:
- 50 × ? = 300
- ? = 300 ÷ 50 = 6

✔ Answer: 6

---

Problem 4:

```
?5
x 2
----
150
```
We know:
- ?5 × 2 = 150
- Try dividing: 150 ÷ 2 = 75
- So, the number is 75, meaning the missing digit is 7

✔ Answer: 7

---

Problem 5:

```
35
x ?
----
105
```
We know:
- 35 × ? = 105
- ? = 105 ÷ 35 = 3

✔ Answer: 3

---

Problem 6:

```
?5
x 4
----
220
```
We know:
- ?5 × 4 = 220
- 220 ÷ 4 = 55
- So, the number is 55, so missing digit is 5

✔ Answer: 5

---

Problem 7:

```
60
x ?
----
180
```
We know:
- 60 × ? = 180
- ? = 180 ÷ 60 = 3

✔ Answer: 3

---

Problem 8:

```
2?
x 5
----
120
```
We know:
- 2? × 5 = 120
- 120 ÷ 5 = 24
- So, the number is 24, meaning the missing digit is 4

✔ Answer: 4

---

Problem 9:

```
74
x ?
----
296
```
We know:
- 74 × ? = 296
- ? = 296 ÷ 74 = 4

✔ Answer: 4

---

Problem 10:

```
52
x ?
----
468
```
We know:
- 52 × ? = 468
- ? = 468 ÷ 52 = 9

✔ Answer: 9

---

Problem 11:

```
45
x ?
----
270
```
We know:
- 45 × ? = 270
- ? = 270 ÷ 45 = 6

✔ Answer: 6

---

Problem 12:

```
22
x ?
----
132
```
We know:
- 22 × ? = 132
- ? = 132 ÷ 22 = 6

✔ Answer: 6

---

Problem 13:

```
??
x 9
----
225
```
We know:
- ?? × 9 = 225
- 225 ÷ 9 = 25
- So, the number is 25, so both digits are 2 and 5

✔ Answer: 25

---

Problem 14:

```
9?
x 3
----
?85
```
We know:
- 9? × 3 = ?85
- The product ends in 5 → so the units digit of (9? × 3) must be 5.
- Try possible values for ? such that (9? × 3) ends in 5.

Try:
- 90 × 3 = 270 → ends in 0 ✘
- 91 × 3 = 273 ✘
- 92 × 3 = 276 ✘
- 93 × 3 = 279 ✘
- 94 × 3 = 282 ✘
- 95 × 3 = 285 ✔ → ends in 5

So, 95 × 3 = 285 → matches the format: ?85 → 285

So:
- Missing digit in multiplier: 5
- Missing digit in product: 2

✔ Answer: 5 (top), 2 (bottom)

---

Problem 15:

```
69
x ?
----
2?6
```
We know:
- 69 × ? = 2?6 → a 3-digit number starting with 2 and ending with 6
- Try small values:

Try 3: 69 × 3 = 207 → ends in 7 ✘
Try 4: 69 × 4 = 276 → ends in 6 ✔ → matches 2?6 → middle digit is 7

So:
- Multiplier: 4
- Product: 276

✔ Answer: 4 (multiplier), 7 (middle digit)

---

Problem 16:

```
??
x 8
----
152
```
We know:
- ?? × 8 = 152
- 152 ÷ 8 = 19
- So, the number is 19

✔ Answer: 19

---

✔ Final Answers (in order):

| Problem | Answer |
|--------|--------|
| 1 | 5 |
| 2 | 5 |
| 3 | 6 |
| 4 | 7 |
| 5 | 3 |
| 6 | 5 |
| 7 | 3 |
| 8 | 4 |
| 9 | 4 |
| 10 | 9 |
| 11 | 6 |
| 12 | 6 |
| 13 | 25 |
| 14 | 5 (top), 2 (bottom) |
| 15 | 4 (multiplier), 7 (product middle) |
| 16 | 19 |

---

🔍 Summary of Filled Worksheet:

```
20 15 50 75
x 5 x 7 x 6 x 2
----- ----- ----- -----
100 105 300 150

35 55 60 24
x 3 x 4 x 3 x 5
----- ----- ----- -----
105 220 180 120

74 52 45 22
x 4 x 9 x 6 x 6
----- ----- ----- -----
296 468 270 132

25 95 69 19
x 9 x 3 x 4 x 8
----- ----- ----- -----
225 285 276 152
```

All problems solved!

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