Simple calculation of the fourth week of the B version of the Olympic Games in the third and sixth grade of primary school (3) Improvement of the seventh volume.

4/33× 133

=4/33×( 132+ 1)

=4/33× 132+4/33

= 16 4/33

2000/200 1×2002

=2000/200 1×(200 1+ 1)

=2000+2000/200 1

=2000 and 2000/200 1

13 and 1/5 ×5/6+28 and 2/7×7/9

=( 12+ 1 and 1/5 )×5/6+(27+ 1 and 2/7)×7/9.

= 10+ 1+2 1+ 1

=33

4/ 13×2+ 1/ 13×6+2/ 13×6

= 1/ 13×8+ 1/ 13×6+ 1/ 13× 12

= 1/ 13×(8+6+ 12)

= 1/ 13×26

1/ 1 1×6+3/ 1 1×7+2×3/ 1 1

=3/ 1 1×2+3/ 1 1×7+2×3/ 1 1

=3/ 1 1×(2+7+2)

=3/ 1 1× 1 1

5/ 1 1× 1/20+3/ 1 1× 1/2+5/ 1 1× 1/5

=5/ 1 1× 1/20+3/ 1 1× 1/2+5/ 1 1× 1/5

= 1/ 1 1× 1/4+ 1/ 1 1×3/2+ 1/ 1 1× 1

= 1/ 1 1×( 1/4+3/2+ 1)

= 1/ 1 1× 1 1/4

= 1/4

229 and11146 and 1/44.

=(230× 10)/ 1 1 × 44/(45×45)

= 368/8 1

Note: 229×11+1= 230×10, 46×44+ 1=45×45.