Grade 4-B contents & samples - Math Mammoth

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Sample worksheet from www.mathmammoth.com (This page intentionally left blank.)
Adding and Subtracting with Tenths You already know how to add or subtract decimals with tenths. They are just fractions with a denominator of 10. Compare these additions that are written with decimals or fractions. There is one tricky part though: 0.6 + 0.7 is NOT 0.13 !! To see why, add the fractions. Notice that six tenths and seven tenths makes more than one whole! 1. Write an addition or subtraction sentence for each “number line jump.” a. You're at 0.7, and you jump five tenths to the right. _____________________________________ b. You're at 0.6, and you jump eight tenths to the right. ____________________________________ c. You're at 1.1, and you jump eight tenths to the left. _____________________________________ d. You're at 1.3, and you jump four tenths to the left. _____________________________________ e. You're at 0.2, and you jump eleven tenths to the right. ____________________________________ 2. Solve the fraction additions, and then write them using decimals. a. 2 10 0.2 + + 7 10 = 3. Add and subtract. a. 0.9 + 0.2 = _______ 1.9 + 0.2 = _______ Sample worksheet from www.mathmammoth.com b. 5 10 + 0.1 + 0.5 = 0.6 1 10 + 5 10 = 6 10 0.6 + 0.7 = 1.3 6 10 6 10 b. 0.5 + 0.7 = _______ 3.5 + 0.7 = _______ + 7 10 = 13 10 = 1 3 10 = c. 9 10 + 174 c. 0.8 + 0.7 = _______ 0.8 + 2.7 = _______ 8.4 − 2.3 = 6.1 8 4 10 − 2 3 10 = 6 1 10 1.5 + 0.9 = 2.4 1 5 10 8 10 = + 9 10 = 2 4 10 d. 1.8 − 0.9 = _______ 5.8 − 0.9 = _______
Page 1 and 2: Sample worksheet from www.mathmammo
Page 5 and 6: Foreword Math Mammoth Grade 4-A and
Page 7 and 8: Long Division with 4-Digit Numbers
Page 9 and 10: The following games can be used to
Page 11 and 12: Long Division 1 Divide hundreds, te
Page 13 and 14: 395 ÷ 3 = 131 R2 4 does not go int
Page 17 and 18: 3. Fill in. Here's a multiplication
Page 19 and 20: 8. a. Write a list of numbers divis
Page 21 and 22: Chapter 6: Geometry Introduction We
Page 23 and 24: Shapes/Polygons Interactive Quadril
Page 27 and 28: 2. a. Draw an obtuse angle. Then ma
Page 29 and 30: 7. a. Draw a triangle with 85° and
Page 31 and 32: Chapter 7: Fractions Introduction I
Page 33 and 34: Fraction Worksheets: Equivalent Fra
Page 37 and 38: The fraction strip illustrates (bot
Page 39 and 40: 6. Write the equivalent fraction. U
Page 43: Helpful Resources on the Internet M

Grade 4-B contents & samples - Math Mammoth

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