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
51 − 10 = ______
8 × 10 = ______
21 + 10 = ______
72 + 10 = ______
56 + 20 = ______
62 − 10 = ______
28 + 10 = ______
79 − 10 = ______
43 − 10 = ______
84 + 20 = ______
63 + 10 = ______
38 − 10 = ______
54 + 20 = ______
6 × 10 = ______
24 + 20 = ______
54 + 10 = ______
87 + 20 = ______
73 + 10 = ______
40 + 10 = ______
42 − 10 = ______
