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
58 − 10 = ______
80 + 20 = ______
44 + 10 = ______
9 × 10 = ______
77 − 10 = ______
46 + 20 = ______
57 + 20 = ______
27 − 10 = ______
36 + 10 = ______
86 − 10 = ______
56 + 10 = ______
17 + 20 = ______
37 − 10 = ______
76 + 20 = ______
68 + 10 = ______
29 − 10 = ______
28 − 10 = ______
4 × 10 = ______
83 + 10 = ______
28 + 10 = ______
