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
34 + 10 = ______
7 × 10 = ______
48 + 10 = ______
50 + 10 = ______
78 + 20 = ______
79 + 20 = ______
12 + 10 = ______
9 × 10 = ______
2 × 10 = ______
59 + 20 = ______
8 × 10 = ______
43 − 10 = ______
12 + 20 = ______
64 − 10 = ______
73 − 10 = ______
44 + 10 = ______
61 + 10 = ______
53 − 10 = ______
81 − 10 = ______
57 − 10 = ______
