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 + 10 = ______
37 + 20 = ______
14 + 10 = ______
4 × 10 = ______
42 − 10 = ______
1 × 10 = ______
54 + 20 = ______
58 + 10 = ______
32 + 20 = ______
12 + 20 = ______
72 + 10 = ______
45 + 10 = ______
59 − 10 = ______
37 − 10 = ______
73 + 10 = ______
54 − 10 = ______
37 + 10 = ______
97 − 10 = ______
49 − 10 = ______
24 + 20 = ______
