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Ten Minute Math Inserts for 5th Grade- Unit 7 (replace Ten Minute Math- Number Puzzles with the following) Suggested Number Puzzle Replacement for Session: 2.1 Write the following expressions on the board: Compare 3 x 2 + 5 and 3 x (2 + 5) Ask students to solve the problems and compare the different solutions. Call on a student to explain their answer. Do the same with the following equation: 15 – 6 + 7 and 15 – (6 + 7) Suggested Number Puzzle Replacement for Session: 2.2 Write the following expression on the board: (26 + 18)÷ 4= Ask students to solve the problem and compare solutions with a partner. Call on volunteers to explain their answers. Record each step of the solution process. Then have students solve each of the following problems and explain whether or not the answer changed. 14 + 14 ÷ 2 – 4 X 3= (14 + 14) ÷ 2 – 4 X 3= Answers: 11, 9, 2 Suggested Number Puzzle Replacement for Session: 2.3 Write the following expression on the board: 12 – (0.4 x 2) = Ask students to solve the problem and compare solutions with a partner. Call on volunteers to explain their answers. Record each step of the solution process. Then have students solve each of the following problems and explain their work. (2 + 3) x (1.5 – 0.5) = 1 1 6 – (2 + 3) = 1 Answers: 11.2, 5, 5 6 Suggested Number Puzzle Replacement for Session: 3.3 Write the following expression on the board: 8 X (9 + 3) ÷ 3 – 30 = Ask students to solve the problem and compare solutions with a partner. Call on volunteers to explain their answers. Record each step of the solution process. Then have students solve each of the following problems and explain their work. (8 x (9-3) – 30) ÷ 3 = [9-3] x 8 – [30 ÷ 3] = Answers: 2, 6, 38 Suggested Number Puzzle Replacement for Session: 3.4 Write the following equation on the board: 15 - 7 – 2 = 10 Ask students to work with a partner to decide where to insert parentheses, brackets and or braces to make the equation true. Call on a student to explain their answer. Do the same with the following equation: 4 X 3 + 2 – 10 X 2 = 0 Answers: 15 - (7 – 2) = 10; 4 X (3 + 2) – 10 X 2 = 0 Suggested Number Puzzle Replacement for Session: 3.5 Write the following equation on the board: 3.5 x 2 + 2.5 x 4 = 63 Ask students to work with a partner to decide where to insert parentheses, brackets and or braces to make the equation true. Call on a student to explain their answer. Do the same with the following equation: .001 X 100 ÷ 10 + .1 = .11 Answers: 3.5 x (2+ 2.5) x 4 = 63; .001 X (100 ÷ 10) + .1 = .11 Suggested Number Puzzle Replacement for Session: 4.1 Write the following equation on the board: 24 ÷ 12 ÷ 6 ÷ 2 = 2 x 9 + 3 ÷ ½ Ask students to work with a partner to decide where to insert parentheses to make the equation true. Call on a student to explain their answer. Do the same with the following equation: .3 + .7 X 100 – 50 ÷ 5 = 90 Answers: 24 ÷ (12 ÷ 6) ÷ 2 = (2 x 9) + (3 ÷ ½); (.3 + .7) X 100 – 50 ÷ 5 = 90 Suggested Number Puzzle Replacement for Session: 4.4 3 1 1 1 1 Write the following expression on the board: 4 + 2 X 1 – 2 - 2 =2 Ask students to work with a partner to decide where to insert parentheses, brackets and or braces to make the equation true. Call on a student to explain their answer. 5 1 3 1 11 Do the same with the following equation: 6 + 12 X 4 – 2 = 48 3 1 1 1 1 5 1 3 1 11 Answers: 4 + 2 X (1 – 2) - 2 =2;( 6 + 12 )X ( 4 – 2) = 48 Suggested Number Puzzle Replacement for Session: 4.5 Ask students to create an equation and decide where to insert parentheses, brackets and or braces to make the equation true. Have students swap problems with a partner and compare solutions. Call on volunteers to share their equations for the whole class to solve.