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
24 + 20 = ______
40 + 10 = ______
63 + 10 = ______
13 + 20 = ______
58 − 10 = ______
24 + 10 = ______
79 + 20 = ______
38 − 10 = ______
72 − 10 = ______
46 + 20 = ______
71 + 10 = ______
45 − 10 = ______
54 + 20 = ______
1 × 10 = ______
52 − 10 = ______
93 − 10 = ______
4 × 10 = ______
14 + 20 = ______
79 + 10 = ______
5 × 10 = ______
