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
83 − 10 = ______
91 − 10 = ______
25 − 10 = ______
40 + 10 = ______
55 + 20 = ______
9 × 10 = ______
7 × 10 = ______
19 + 10 = ______
1 × 10 = ______
3 × 10 = ______
67 + 20 = ______
55 + 10 = ______
5 × 10 = ______
75 + 10 = ______
24 − 10 = ______
2 × 10 = ______
71 + 10 = ______
50 + 20 = ______
84 − 10 = ______
27 + 20 = ______
