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
40 + 20 = ______
24 + 10 = ______
72 − 10 = ______
3 × 10 = ______
44 + 20 = ______
7 × 10 = ______
33 − 10 = ______
5 × 10 = ______
32 + 20 = ______
36 + 20 = ______
95 − 10 = ______
42 − 10 = ______
34 + 10 = ______
89 + 10 = ______
53 + 20 = ______
39 + 20 = ______
87 − 10 = ______
44 + 10 = ______
9 × 10 = ______
1 × 10 = ______
