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
31 + 20 = ______
71 − 10 = ______
63 + 10 = ______
1 × 10 = ______
55 + 10 = ______
89 + 10 = ______
73 + 20 = ______
44 − 10 = ______
75 + 20 = ______
13 + 20 = ______
6 × 10 = ______
40 − 10 = ______
95 − 10 = ______
23 + 20 = ______
23 − 10 = ______
4 × 10 = ______
32 + 20 = ______
94 − 10 = ______
80 + 10 = ______
11 + 10 = ______
