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
55 + 10 = ______
2 × 10 = ______
5 × 10 = ______
9 × 10 = ______
75 + 20 = ______
55 − 10 = ______
48 + 20 = ______
66 − 10 = ______
94 − 10 = ______
41 + 10 = ______
4 × 10 = ______
39 + 10 = ______
46 + 10 = ______
6 × 10 = ______
27 − 10 = ______
27 + 20 = ______
76 + 20 = ______
8 × 10 = ______
44 + 20 = ______
19 + 20 = ______
