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
60 + 10 = ______
53 − 10 = ______
2 × 10 = ______
5 × 10 = ______
26 + 10 = ______
12 + 10 = ______
33 − 10 = ______
57 + 20 = ______
94 − 10 = ______
6 × 10 = ______
57 + 10 = ______
8 × 10 = ______
7 × 10 = ______
48 − 10 = ______
14 + 10 = ______
83 + 10 = ______
86 + 20 = ______
42 + 20 = ______
1 × 10 = ______
83 + 20 = ______
