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
43 − 10 = ______
44 − 10 = ______
34 − 10 = ______
7 × 10 = ______
86 + 10 = ______
73 + 20 = ______
31 + 20 = ______
5 × 10 = ______
23 + 10 = ______
51 + 20 = ______
36 + 20 = ______
28 + 10 = ______
2 × 10 = ______
33 + 10 = ______
3 × 10 = ______
62 + 20 = ______
44 + 10 = ______
66 + 20 = ______
6 × 10 = ______
98 − 10 = ______
