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The answer on page 86 of the math oral card in the second volume of the fourth grade
The answer on page 86 of the math oral card in the second volume of the fourth grade

Example:

25× 12=300

400÷25= 16

125× 16=2000

1 1×232= 2552

37× 1 1=407

1500÷ 125= 12

73×77=6545

125×36×8=36000

1 1×89=979

4× 1 1×25= 1 100

35×75=2625

85×85=7225

55×55=3025

1 1×3205= 35255