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
44 + 10 = ______
6 × 10 = ______
70 + 10 = ______
79 − 10 = ______
68 + 20 = ______
8 × 10 = ______
31 − 10 = ______
63 + 10 = ______
50 − 10 = ______
76 + 20 = ______
1 × 10 = ______
61 + 20 = ______
73 + 20 = ______
5 × 10 = ______
83 + 10 = ______
35 + 20 = ______
2 × 10 = ______
75 + 20 = ______
4 × 10 = ______
42 + 20 = ______
