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
42 + 10 = ______
2 × 10 = ______
4 × 10 = ______
56 + 20 = ______
54 + 10 = ______
1 × 10 = ______
37 + 20 = ______
79 + 20 = ______
49 + 20 = ______
83 − 10 = ______
19 + 10 = ______
85 + 10 = ______
61 + 10 = ______
6 × 10 = ______
5 × 10 = ______
98 − 10 = ______
92 − 10 = ______
78 − 10 = ______
75 + 10 = ______
45 + 10 = ______
