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 + 20 = ______
33 + 10 = ______
86 + 20 = ______
9 × 10 = ______
75 − 10 = ______
72 − 10 = ______
2 × 10 = ______
5 × 10 = ______
3 × 10 = ______
46 + 10 = ______
71 + 20 = ______
6 × 10 = ______
28 − 10 = ______
53 + 20 = ______
38 − 10 = ______
1 × 10 = ______
51 + 10 = ______
44 − 10 = ______
29 − 10 = ______
84 + 20 = ______
