1) six and four makes ______________ a) eight b) ten c) nine 2) three and _______________ makes ten. a) eight b) nine c) seven 3) double ten is ________________ a) twenty b) thirty c) ten 4) eleven and ____________________ makes 20 a) nine b) seven c) ten 5) double ____________ is six a) three b) two c) four 6) double forty is ____________________ a) eight b) eighty c) seventy 7) double fifteen is _____________________. a) thirty b) thirteen c) twenty 8) nineteen and _________________ makes 20 a) two b) one c) three 9) twenty and __________________ makes twenty a) one b) zero c) five 10) double seven is ____________________ a) fifteen b) fourteen c) forty 11) double fifty is _______________________ a) one hundred b) two hundred c) seventy 12) double thirty is ______________________ a) eighty b) seventy c) sixty 13) double zero is________________________ a) one b) zero c) one

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