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
12 + 10 = ______
42 + 10 = ______
78 + 20 = ______
38 + 10 = ______
38 − 10 = ______
6 × 10 = ______
81 − 10 = ______
73 + 10 = ______
27 + 20 = ______
48 + 10 = ______
68 + 10 = ______
86 − 10 = ______
7 × 10 = ______
35 + 10 = ______
53 + 20 = ______
5 × 10 = ______
32 − 10 = ______
88 + 10 = ______
3 × 10 = ______
9 × 10 = ______
