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
8 × 10 = ______
64 + 20 = ______
49 − 10 = ______
27 − 10 = ______
73 + 10 = ______
63 − 10 = ______
41 − 10 = ______
43 − 10 = ______
41 + 20 = ______
65 + 10 = ______
37 + 20 = ______
84 + 10 = ______
77 + 10 = ______
23 − 10 = ______
3 × 10 = ______
44 + 20 = ______
12 + 20 = ______
95 − 10 = ______
52 − 10 = ______
87 + 10 = ______
