Question 11 MarkWhich sequence do you get when you start adding the counting numbers up and then down?AnswerSequence of squaresView full question & answer→
Question 21 MarkCan a triangular number also be a square number?AnswerYes, 36 is both a triangular number and a square number.View full question & answer→
Question 31 MarkCan a rectangular number also be a square number?AnswerYes, $36=4 \times 9$ is both a rectangular as well as a square number.View full question & answer→
Question 41 MarkObserve the pattern in the following number sequences and write the $n^{\text {th }}$ term in each case:4, 4 + 2, 4 + 2 + 2, 4 + 2 + 2 + 2, 4 + 2 + 2 + 2 + 2, _________________Answer$4+2(n-1)$View full question & answer→
Question 51 MarkObserve the pattern in the following number sequences and write the $n^{\text {th }}$ term in each case:1, 3, 6, 10, 15, 21, 28, _________________Answer$\frac{n(n+1)}{2}$View full question & answer→
Question 61 MarkObserve the pattern in the following number sequences and write the $n^{\text {th }}$ term in each case:2, 8, 18, 32, 50, 72, 98, _________________Answer$2 n^2$View full question & answer→
Question 71 MarkObserve the pattern in the following number sequences and write the $n^{\text {th }}$ term in each case:2, 6, 12, 20, 30, 42, 56, _________________Answer$n(n+1)$View full question & answer→
Question 81 MarkIdentify the pattern in number sequence and write the next three terms.0, 1, 1, 2, 3, 5, 8, 13, 21, 34, _________________Answer55, 89, 144 View full question & answer→
Question 91 MarkIdentify the pattern in number sequence and write the next three terms.2, 5, 10, 17, 26, 37, 50, _________________Answer65, 82, 101 View full question & answer→
Question 101 MarkIdentify the pattern in number sequence and write the next three terms.1,9, 25, 49, 81, 121, 144, _________________Answer169, 196, 225 View full question & answer→
Question 111 MarkIdentify the pattern in number sequence and write the next three terms.1, 3, 7, 15, 31, 63, 127, _________________Answer255, 511, 1022 View full question & answer→
Question 121 MarkIdentify the pattern in number sequence and write the next three terms.7, 14, 21, 28, 35, 42, 49, _________________Answer56, 63, 70 View full question & answer→