Another Peek Beyond the Point | FIO

Question 33

Find the missing cells if each cell represents a÷b:

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Solution

We need to find the missing values in the table by performing division.

Step 1 — Find the base division Let us look at the first filled cell. Here, the value of b is 37. The value of a is 1517. The cell value is 41. This means that a ÷ b = 41. Let us check this division.

1517÷371517 \div 37

We perform the division.

=41= 41

41\boxed{41}

This confirms our base division.

Step 2 — Understand decimal shifts in division We know that 1517 ÷ 37 = 41. Let us see how decimal points affect the result. If we divide a by 10, the result also divides by 10. For example, 151.7 ÷ 37 = (1517 ÷ 10) ÷ 37 = 41 ÷ 10 = 4.1. If we divide b by 10, the result multiplies by 10. For example, 1517 ÷ 3.7 = 1517 ÷ (37 ÷ 10) = 41 × 10 = 410. We will use this rule to fill the table.

Step 3 — Calculate missing cells in Row 1 (b = 37) For this row, b is 37. The base result is 41.

(i) For a = 151.7: We divide a by 10 compared to 1517. So, we divide the base result by 10.

151.7÷37151.7 \div 37

=(1517÷10)÷37= (1517 \div 10) \div 37

=(1517÷37)÷10= (1517 \div 37) \div 10

=41÷10= 41 \div 10

4.1\boxed{4.1}

(ii) For a = 15.17: We divide a by 100 compared to 1517. So, we divide the base result by 100.

15.17÷3715.17 \div 37

=(1517÷100)÷37= (1517 \div 100) \div 37

=(1517÷37)÷100= (1517 \div 37) \div 100

=41÷100= 41 \div 100

0.41\boxed{0.41}

(iii) For a = 1.517: We divide a by 1000 compared to 1517. So, we divide the base result by 1000.

1.517÷371.517 \div 37

=(1517÷1000)÷37= (1517 \div 1000) \div 37

=(1517÷37)÷1000= (1517 \div 37) \div 1000

=41÷1000= 41 \div 1000

0.041\boxed{0.041}

(iv) For a = 15170: We multiply a by 10 compared to 1517. So, we multiply the base result by 10.

15170÷3715170 \div 37

=(1517×10)÷37= (1517 \times 10) \div 37

=(1517÷37)×10= (1517 \div 37) \times 10

=41×10= 41 \times 10

410\boxed{410}

Step 4 — Calculate missing cells in Row 2 (b = 3.7) For this row, b is 3.7. This is 37 ÷ 10. Dividing by 3.7 is like multiplying the result by 10.

(v) For a = 1517: We divide 1517 by 3.7.

1517÷3.71517 \div 3.7

=1517÷(37÷10)= 1517 \div (37 \div 10)

=(1517÷37)×10= (1517 \div 37) \times 10

=41×10= 41 \times 10

410\boxed{410}

(vi) For a = 151.7: We divide 151.7 by 3.7. a is 1517 ÷ 10. b is 37 ÷ 10.

151.7÷3.7151.7 \div 3.7

=(1517÷10)÷(37÷10)= (1517 \div 10) \div (37 \div 10)

=(1517÷37)×(10÷10)= (1517 \div 37) \times (10 \div 10)

=41×1= 41 \times 1

41\boxed{41}

(vii) For a = 1.517: We divide 1.517 by 3.7. a is 1517 ÷ 1000. b is 37 ÷ 10.

1.517÷3.71.517 \div 3.7

=(1517÷1000)÷(37÷10)= (1517 \div 1000) \div (37 \div 10)

=(1517÷37)×(10÷1000)= (1517 \div 37) \times (10 \div 1000)

=41÷100= 41 \div 100

0.41\boxed{0.41}

(viii) For a = 15170: We divide 15170 by 3.7. a is 1517 × 10. b is 37 ÷ 10.

15170÷3.715170 \div 3.7

=(1517×10)÷(37÷10)= (1517 \times 10) \div (37 \div 10)

=(1517÷37)×(10×10)= (1517 \div 37) \times (10 \times 10)

=41×100= 41 \times 100

4100\boxed{4100}

Step 5 — Calculate missing cells in Row 3 (b = 0.37) For this row, b is 0.37. This is 37 ÷ 100. Dividing by 0.37 is like multiplying the result by 100.

(ix) For a = 1517: We divide 1517 by 0.37.

1517÷0.371517 \div 0.37

=1517÷(37÷100)= 1517 \div (37 \div 100)

=(1517÷37)×100= (1517 \div 37) \times 100

=41×100= 41 \times 100

4100\boxed{4100}

(x) For a = 151.7: We divide 151.7 by 0.37. a is 1517 ÷ 10. b is 37 ÷ 100.

151.7÷0.37151.7 \div 0.37

=(1517÷10)÷(37÷100)= (1517 \div 10) \div (37 \div 100)

=(1517÷37)×(100÷10)= (1517 \div 37) \times (100 \div 10)

=41×10= 41 \times 10

410\boxed{410}

(xi) For a = 15.17: We divide 15.17 by 0.37. a is 1517 ÷ 100. b is 37 ÷ 100.

15.17÷0.3715.17 \div 0.37

=(1517÷100)÷(37÷100)= (1517 \div 100) \div (37 \div 100)

=(1517÷37)×(100÷100)= (1517 \div 37) \times (100 \div 100)

=41×1= 41 \times 1

41\boxed{41}

(xii) For a = 1.517: We divide 1.517 by 0.37. a is 1517 ÷ 1000. b is 37 ÷ 100.

1.517÷0.371.517 \div 0.37

=(1517÷1000)÷(37÷100)= (1517 \div 1000) \div (37 \div 100)

=(1517÷37)×(100÷1000)= (1517 \div 37) \times (100 \div 1000)

=41÷10= 41 \div 10

4.1\boxed{4.1}

(xiii) For a = 15170: We divide 15170 by 0.37. a is 1517 × 10. b is 37 ÷ 100.

15170÷0.3715170 \div 0.37

=(1517×10)÷(37÷100)= (1517 \times 10) \div (37 \div 100)

=(1517÷37)×(10×100)= (1517 \div 37) \times (10 \times 100)

=41×1000= 41 \times 1000

41000\boxed{41000}

Step 6 — Calculate missing cells in Row 4 (b = 0.037) For this row, b is 0.037. This is 37 ÷ 1000. Dividing by 0.037 is like multiplying the result by 1000.

(xiv) For a = 1517: We divide 1517 by 0.037.

1517÷0.0371517 \div 0.037

=1517÷(37÷1000)= 1517 \div (37 \div 1000)

=(1517÷37)×1000= (1517 \div 37) \times 1000

=41×1000= 41 \times 1000

41000\boxed{41000}

(xv) For a = 15.17: We divide 15.17 by 0.037. a is 1517 ÷ 100. b is 37 ÷ 1000.

15.17÷0.03715.17 \div 0.037

=(1517÷100)÷(37÷1000)= (1517 \div 100) \div (37 \div 1000)

=(1517÷37)×(1000÷100)= (1517 \div 37) \times (1000 \div 100)

=41×10= 41 \times 10

410\boxed{410}

(xvi) For a = 1.517: We divide 1.517 by 0.037. a is 1517 ÷ 1000. b is 37 ÷ 1000.

1.517÷0.0371.517 \div 0.037

=(1517÷1000)÷(37÷1000)= (1517 \div 1000) \div (37 \div 1000)

=(1517÷37)×(1000÷1000)= (1517 \div 37) \times (1000 \div 1000)

=41×1= 41 \times 1

41\boxed{41}

(xvii) For a = 15170: We divide 15170 by 0.037. a is 1517 × 10. b is 37 ÷ 1000.

15170÷0.03715170 \div 0.037

=(1517×10)÷(37÷1000)= (1517 \times 10) \div (37 \div 1000)

=(1517÷37)×(10×1000)= (1517 \div 37) \times (10 \times 1000)

=41×10000= 41 \times 10000

410000\boxed{410000}

Step 7 — Calculate missing cells in Row 5 (b = 370) For this row, b is 370. This is 37 × 10. Dividing by 370 is like dividing the result by 10.

(xviii) For a = 1517: We divide 1517 by 370.

1517÷3701517 \div 370

=1517÷(37×10)= 1517 \div (37 \times 10)

=(1517÷37)÷10= (1517 \div 37) \div 10

=41÷10= 41 \div 10

4.1\boxed{4.1}

(xix) For a = 151.7: We divide 151.7 by 370. a is 1517 ÷ 10. b is 37 × 10.

151.7÷370151.7 \div 370

=(1517÷10)÷(37×10)= (1517 \div 10) \div (37 \times 10)

=(1517÷37)÷(10×10)= (1517 \div 37) \div (10 \times 10)

=41÷100= 41 \div 100

0.41\boxed{0.41}

(xx) For a = 15.17: We divide 15.17 by 370. a is 1517 ÷ 100. b is 37 × 10.

15.17÷37015.17 \div 370

=(1517÷100)÷(37×10)= (1517 \div 100) \div (37 \times 10)

=(1517÷37)÷(100×10)= (1517 \div 37) \div (100 \times 10)

=41÷1000= 41 \div 1000

0.041\boxed{0.041}

(xxi) For a = 1.517: We divide 1.517 by 370. a is 1517 ÷ 1000. b is 37 × 10.

1.517÷3701.517 \div 370

=(1517÷1000)÷(37×10)= (1517 \div 1000) \div (37 \times 10)

=(1517÷37)÷(1000×10)= (1517 \div 37) \div (1000 \times 10)

=41÷10000= 41 \div 10000

0.0041\boxed{0.0041}

(xxii) For a = 15170: We divide 15170 by 370. a is 1517 × 10. b is 37 × 10.

15170÷37015170 \div 370

=(1517×10)÷(37×10)= (1517 \times 10) \div (37 \times 10)

=(1517÷37)×(10÷10)= (1517 \div 37) \times (10 \div 10)

=41×1= 41 \times 1

41\boxed{41}

Answer

(i) The cell for b=37, a=151.7 is 4.1. (ii) The cell for b=37, a=15.17 is 0.41. (iii) The cell for b=37, a=1.517 is 0.041. (iv) The cell for b=37, a=15170 is 410. (v) The cell for b=3.7, a=1517 is 410. (vi) The cell for b=3.7, a=151.7 is 41. (vii) The cell for b=3.7, a=1.517 is 0.41. (viii) The cell for b=3.7, a=15170 is 4100. (ix) The cell for b=0.37, a=1517 is 4100. (x) The cell for b=0.37, a=151.7 is 410. (xi) The cell for b=0.37, a=15.17 is 41. (xii) The cell for b=0.37, a=1.517 is 4.1. (xiii) The cell for b=0.37, a=15170 is 41000. (xiv) The cell for b=0.037, a=1517 is 41000. (xv) The cell for b=0.037, a=15.17 is 410. (xvi) The cell for b=0.037, a=1.517 is 41. (xvii) The cell for b=0.037, a=15170 is 410000. (xviii) The cell for b=370, a=1517 is 4.1. (xix) The cell for b=370, a=151.7 is 0.41. (xx) The cell for b=370, a=15.17 is 0.041. (xxi) The cell for b=370, a=1.517 is 0.0041. (xxii) The cell for b=370, a=15170 is 41.

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