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
3 × 10 = ______
21 − 10 = ______
55 − 10 = ______
74 + 10 = ______
9 × 10 = ______
38 − 10 = ______
5 × 10 = ______
84 − 10 = ______
76 + 20 = ______
32 + 10 = ______
13 + 10 = ______
44 + 10 = ______
86 + 20 = ______
7 × 10 = ______
1 × 10 = ______
2 × 10 = ______
84 + 10 = ______
60 + 10 = ______
6 × 10 = ______
14 + 20 = ______
