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036_G1U28_G2U4˙—» ¿º 2011.3.22 5:8 PM ˘ ` 113 PDF_In 2540DPI 150LPI T
2 Add the tens and ones separately. Then find the sum.
46 + 23 = 69 a 36 + 52 =
60 + 9
b 71 + 23 = c 14 + 63 =
d 65 + 31 = e 38 + 11 =
3 Add the 2-digit numbers below.
46 + 23 = 69 a 42 + 53 =
c 12 + 66 =
66 + 3
b 36 + 22 =
d 16 + 41 = e 53 + 44 =
28. Balancing Weights 113
2 Add the tens and ones separately. Then find the sum.
46 + 23 = 69 a 36 + 52 =
60 + 9
b 71 + 23 = c 14 + 63 =
d 65 + 31 = e 38 + 11 =
3 Add the 2-digit numbers below.
46 + 23 = 69 a 42 + 53 =
c 12 + 66 =
66 + 3
b 36 + 22 =
d 16 + 41 = e 53 + 44 =
28. Balancing Weights 113
