Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
72 − 10 = ______
41 − 10 = ______
8 × 10 = ______
9 × 10 = ______
67 − 10 = ______
43 + 20 = ______
88 + 10 = ______
77 + 20 = ______
22 + 20 = ______
65 − 10 = ______
4 × 10 = ______
31 − 10 = ______
40 + 20 = ______
84 − 10 = ______
34 + 10 = ______
82 + 10 = ______
5 × 10 = ______
29 + 10 = ______
70 + 20 = ______
31 + 10 = ______
